diff --git a/js/swad19.193.1.js b/js/swad19.193.1.js
deleted file mode 100644
index c58f0015..00000000
--- a/js/swad19.193.1.js
+++ /dev/null
@@ -1,2043 +0,0 @@
-// swad.js: javascript functions
-
-/*
-    SWAD (Shared Workspace At a Distance),
-    is a web platform developed at the University of Granada (Spain),
-    and used to support university teaching.
-    Copyright (C) 1999-2020 Antonio Cañas-Vargas
-    University of Granada (SPAIN) (acanas@ugr.es)
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-"use strict";
-
-// Global variable (string) used to write HTML
-var Gbl_HTMLContent;
-
-// Global variable used to call SWAD via AJAX
-var ActionAJAX;
-
-/*****************************************************************************/
-/************************** Handle match keystrokes **************************/
-/*****************************************************************************/
-
-function handleMatchKeys(event) {
-	switch (event.key) {
-		case 'PageUp':
-		case 'ArrowLeft':
-		case 'ArrowUp':
-			submitForm('backward');
-			break;
-		case ' ':	// Space
-			submitForm('play_pause');
-			break;
-		case 'PageDown':
-		case 'ArrowRight':
-		case 'ArrowDown':
-			submitForm('forward');
-			break;
-	}
-}
-
-/*****************************************************************************/
-/************************ Submit a form given its id *************************/
-/*****************************************************************************/
-
-function submitForm(FormId) {
-	var Form = document.getElementById(FormId);
-	
-	if (Form)
-		Form.submit();
-
-	return false;
-}
-
-/*****************************************************************************/
-/*************** Write a date-time in client local time **********************/
-/*****************************************************************************/
-// id is the id of the HTML element in which date-time will be written
-// TimeUTC is the date-time to write in UTC UNIX time format
-// DateFormat:
-// 	Dat_FORMAT_YYYY_MM_DD		= 0
-// 	Dat_FORMAT_DD_MONTH_YYYY	= 1
-// 	Dat_FORMAT_MONTH_DD_YYYY	= 2
-// separator is HTML code to write between date and time
-// StrToday is a string in current language ('today', 'hoy'...)
-// WriteDateOnSameDay = false ==> don't write date if it's the same day than the last call
-// WriteWeekDay = true ==> write day of the week ('monday', 'tuesday'...)
-// WriteHMS = 3 least significant bits for hour, minute and second
-
-function writeLocalDateHMSFromUTC (id,TimeUTC,DateFormat,Separator,StrToday,
-									WriteDateOnSameDay,WriteWeekDay,WriteHMS) {
-	// HMS: Hour, Minutes, Seconds
-	var today = new Date();
-	var todayYea = today.getFullYear();
-	var todayMon = today.getMonth() + 1;
-	var todayDay = today.getDate();
-	var d = new Date();
-	var WriteDate;
-	var WriteTodayStr;
-	var Yea;
-	var Mon;
-	var Day;
-	var DayOfWeek;
-	var Hou;
-	var Min;
-	var Sec;
-	var StrDate;
-	var StrMon;
-	var StrDay;
-	var StrHou;
-	var StrMin;
-	var StrSec;
-
-	d.setTime(TimeUTC * 1000);
-	Yea = d.getFullYear();
-	Mon = d.getMonth() + 1;
-	Day = d.getDate();
-	
-	if (WriteDateOnSameDay)
-		WriteDate = true;
-	// Check to see if the last date has been initialized
-	else if (typeof writeLocalDateHMSFromUTC.lastd == 'undefined')	// Static variable to remember current date for the next call
-		// Not initialized
-		WriteDate = true;
-	else
-		WriteDate = (Yea != writeLocalDateHMSFromUTC.lastd.getFullYear()	||
-					 Mon != writeLocalDateHMSFromUTC.lastd.getMonth() + 1	||
-					 Day != writeLocalDateHMSFromUTC.lastd.getDate())
-
-	writeLocalDateHMSFromUTC.lastd = d;	// Update last date for the next call
-
-	/* Set date */
-	StrDate = '';
-	if (WriteDate) {
-        WriteTodayStr = false;
-        if (StrToday != null)
-        	if (StrToday.length &&
-        		Yea == todayYea &&
-        		Mon == todayMon &&
-        		Day == todayDay)	// Today
-        		WriteTodayStr = true;
-        
-        if (WriteTodayStr)
-        	StrDate = StrToday;
-		else
-			switch (DateFormat) {
-				case 0:	// Dat_FORMAT_YYYY_MM_DD
-					StrMon = ((Mon < 10) ? '0' : '') + Mon;
-					StrDay = ((Day < 10) ? '0' : '') + Day;
-					StrDate = Yea.toString() + '-' + StrMon + '-' + StrDay;
-					break;
-				case 1:	// Dat_FORMAT_DD_MONTH_YYYY
-					StrDate = Day.toString() + '&nbsp;' + MonthsShort[Mon - 1] + '&nbsp;' + Yea.toString();
-					break;
-				case 2:	// Dat_FORMAT_MONTH_DD_YYYY
-					StrDate = MonthsShort[Mon - 1] + '&nbsp;' + Day.toString() + ',&nbsp;' + Yea.toString();
-					break;
-				default:
-					break;
-			}
-		
-		if (WriteWeekDay) {
-			DayOfWeek = d.getDay();
-			DayOfWeek = (DayOfWeek == 0) ? 6 : DayOfWeek - 1;
-			StrDate = StrDate + Separator + DAYS[DayOfWeek];
-		}
-	}
-	else if (WriteWeekDay)
-		StrDate = Separator;
-	StrDate = StrDate + Separator;
-
-	/* Set HH:MM:SS */
-	StrHou = '';
-	StrMin = '';
-	StrSec = '';
-	if (WriteHMS & (1<<2)) {
-		// Bit 2 on => Write hour
-		Hou = d.getHours();
-		StrHou = ((Hou < 10) ?  '0' :  '') + Hou;
-		if (WriteHMS & (1<<1)) {
-			// Bits 2,1 on => Write minutes
-			Min = d.getMinutes();
-			StrMin = ((Min < 10) ? ':0' : ':') + Min;
-			if (WriteHMS & 1) {
-				// Bits 2,1,0 on => Write seconds
-				Sec = d.getSeconds();
-				StrSec = ((Sec < 10) ? ':0' : ':') + Sec;
-			}
-		}
-	}
-
-	/* Write date and time */
-	document.getElementById(id).innerHTML = StrDate + StrHou + StrMin + StrSec;
-}
-
-/*****************************************************************************/
-/************** Set local date-time form fields from UTC time ****************/
-/*****************************************************************************/
-
-function setLocalDateTimeFormFromUTC (id,TimeUTC) {
-	var FormYea = document.getElementById(id+'Year'  );
-	var FormMon = document.getElementById(id+'Month' );
-	var FormDay = document.getElementById(id+'Day'   );
-	var FormHou = document.getElementById(id+'Hour'  );
-	var FormMin = document.getElementById(id+'Minute');
-	var FormSec = document.getElementById(id+'Second');
-	var d;
-	var Year;
-	var YearIsValid = false;
-	var Hou;
-	var Min;
-	var Sec;
-
-	if (TimeUTC) {
-		d = new Date();
-		d.setTime(TimeUTC * 1000);
-
-		Year = d.getFullYear();
-		for (var i=0; i<FormYea.options.length && !YearIsValid; i++)
-			if (FormYea.options[i].value == Year) {
-				FormYea.options[i].selected = true;
-				YearIsValid = true;
-			}
-		if (YearIsValid) {
-			FormMon.options[d.getMonth()].selected = true;
-			FormDay.options[d.getDate()-1].selected = true;
-			
-			Hou = d.getHours();
-			FormHou.options[Hou].selected = true;
-			
-			Min = d.getMinutes();
-			for (var i=FormMin.options.length-1; i>=0; i--)
-				if (FormMin.options[i].value <= Min) {
-					FormMin.options[i].selected = true;
-					break;
-				}
-
-			if (FormSec) {
-				Sec = d.getSeconds();
-				FormSec.options[d.getSeconds()].selected = true;
-			}
-		}
-	}
-	
-	if (!YearIsValid) {
-		FormYea.options[0].selected = true;
-		FormMon.options[0].selected = true;
-		FormDay.options[0].selected = true;
-		FormHou.options[0].selected = true;
-		FormMin.options[0].selected = true;
-		FormSec.options[0].selected = true;
-	}
-}
-
-/*****************************************************************************/
-/************** Set UTC time from local date-time form fields ****************/
-/*****************************************************************************/
-
-function setUTCFromLocalDateTimeForm (id) {
-	var Seconds = 0;
-	var idSecond = document.getElementById(id+'Second');
-	if (idSecond)	// id+'Second' present
-		Seconds = idSecond.value;
-	// Important: set date all at once to avoid problems with different length of months
-	var d = new Date(document.getElementById(id+'Year'  ).value,
-			         document.getElementById(id+'Month' ).value-1,
-			         document.getElementById(id+'Day'   ).value,
-			         document.getElementById(id+'Hour'  ).value,
-			         document.getElementById(id+'Minute').value,
-			         Seconds,
-			         0);
-	document.getElementById(id+'TimeUTC').value = d.getTime() / 1000;
-}
-
-/*****************************************************************************/
-/******************* Set form params related to time zones *******************/
-/*****************************************************************************/
-
-// Set form param with time difference between UTC time and client local time, in minutes
-// For example, if your time zone is GMT+2, -120 will be returned
-function setTZ (id) {
-	var FormTZ = document.getElementById(id);
-	var d = new Date();
-
-	FormTZ.value = d.getTimezoneOffset();
-}
-
-// Set form param with the name of the time zone
-function setTZname (id) {
-	var FormTZname = document.getElementById(id);
-	var tz = jstz.determine();		// Determines the time zone of the browser client
-	FormTZname.value = tz.name();	// Returns the name of the time zone eg "Europe/Berlin"
-}
-
-/*****************************************************************************/
-/********* Adjust a date form correcting selector days in the month **********/
-/*****************************************************************************/
-
-// The selector of days can start by 1, 2, 3... or by -, 1, 2, 3...
-function adjustDateForm (id) {
-	var FormYea = document.getElementById(id+'Year' );
-	var FormMon = document.getElementById(id+'Month');
-	var FormDay = document.getElementById(id+'Day'  );
-	var Yea = Number(FormYea.options[FormYea.selectedIndex].value);
-	var Mon = Number(FormMon.options[FormMon.selectedIndex].value);
-	
-	if (Yea != 0 && Mon != 0) {
-		var LastDayIndex = FormDay.options.length - 1;
-		var LastDayValue = Number(FormDay.options[LastDayIndex].value);
-		var SelectedDay = Number(FormDay.options[FormDay.selectedIndex].value);
-		var Days = daysInMonth (Mon,Yea);
-	
-		// If current selected day is out of range...
-		if (SelectedDay > Days)
-			// Select last day in month
-			for (var i=LastDayIndex; i>=0; i--)
-				if (FormDay.options[i].value == Days) {
-					FormDay.options[i].selected = true;
-					break;
-				}
-	
-		// Create new days at the end if necessary
-		for (var Day = Number(LastDayValue) + 1; Day <= Days; Day++) {
-			var opt = document.createElement('option');
-			opt.value = opt.text = Day;
-			FormDay.add(opt);
-		}
-	
-		// Remove days from the end if necessary
-		for (var i=LastDayIndex; i>=0; i--)
-			if (FormDay.options[i].value > Days)
-				FormDay.options[i] = null;
-			else
-				break;
-	}
-}
-
-/*****************************************************************************/
-/*********************** Get number of days in a month ***********************/
-/*****************************************************************************/
-
-function daysInMonth (month, year) {	// Month is 1 based
-	  return new Date(year, month, 0).getDate();	// 0 is the last day of previous month
-}
-
-/*****************************************************************************/
-/****************** Set a date range form to a specific day ******************/
-/*****************************************************************************/
-
-// Set a date range form to yesterday
-function setDateToYesterday (idStart,idEnd) {
-	var d = new Date();
-
-	d.setTime (d.getTime () - 24 * 60 * 60 * 1000);	// Today - 1 day
-	setDateRange(idStart,idEnd,d);
-}
-
-// Set a date range form to today
-function setDateToToday (idStart,idEnd) {
-	var d = new Date();
-
-	setDateRange(idStart,idEnd,d);
-}
-
-function setDateRange (idStart,idEnd,d) {
-	var FormYea;
-	var Yea = d.getFullYear();
-	var Mon = d.getMonth() + 1;
-	var Day = d.getDate();
-
-	FormYea = document.getElementById(idStart+'Year');
-	for (var i=0; i<FormYea.options.length; i++)
-		if (FormYea.options[i].value == Yea) {
-			FormYea.options[i].selected = true;
-			break;
-		}
-	document.getElementById(idStart+'Month').options[Mon-1].selected = true;
-	adjustDateForm (idStart);	// Adjust date form correcting days in the month
-	document.getElementById(idStart+'Day').options[Day-1].selected = true;
-	setHMSTo000000(idStart);
-
-	FormYea = document.getElementById(idEnd+'Year');
-	for (var i=0; i<FormYea.options.length; i++)
-		if (FormYea.options[i].value == Yea) {
-			FormYea.options[i].selected = true;
-			break;
-		}
-	document.getElementById(idEnd+'Month').options[Mon-1].selected = true;
-	adjustDateForm (idEnd);		// Adjust date form correcting days in the month
-	document.getElementById(idEnd+'Day').options[Day-1].selected = true;
-	setHMSTo235959(idEnd);
-}
-
-/*****************************************************************************/
-/************ Set hour, minute and second in a form to 00:00:00 **************/
-/*****************************************************************************/
-
-function setHMSTo000000 (id) {
-	document.getElementById(id+'Hour'  ).options[0].selected = true;
-	document.getElementById(id+'Minute').options[0].selected = true;
-	document.getElementById(id+'Second').options[0].selected = true;
-	setUTCFromLocalDateTimeForm(id);
-}
-
-/*****************************************************************************/
-/************ Set hour, minute and second in a form to 23:59:59 **************/
-/*****************************************************************************/
-
-function setHMSTo235959 (id) {
-	document.getElementById(id+'Hour'  ).options[23].selected = true;
-	document.getElementById(id+'Minute').options[59].selected = true;
-	document.getElementById(id+'Second').options[59].selected = true;
-	setUTCFromLocalDateTimeForm(id);
-}
-
-/*****************************************************************************/
-/********** Write clock in client local time updated every minute ************/
-/*****************************************************************************/
-
-// Global variables used in writeLocalClock()
-var secondsSince1970UTC;
-
-function writeLocalClock () {
-	var d;
-	var Mon;
-	var Day;
-	var Hou;
-	var Min;
-	var StrMin;
-
-	setTimeout('writeLocalClock()',60000);
-
-	d = new Date();
-	d.setTime(secondsSince1970UTC * 1000);
-	secondsSince1970UTC += 60;	// For next call
-
-	Mon = d.getMonth();
-	Day = d.getDate();
-	Hou = d.getHours();
-	Min = d.getMinutes();
-	StrMin = ((Min < 10) ? '0' : '') + Min;
-
-	document.getElementById('current_month_txt').innerHTML = Months[Mon];
-	document.getElementById('current_day_txt').innerHTML = Day;
-	document.getElementById('current_time').innerHTML = Hou + ':' + StrMin;
-}
-
-// Global variables used in writeClockConnected()
-var NumUsrsCon;
-var ListSeconds = [];
-var countClockConnected = 0;
-   
-function writeClockConnected () {
-	var BoxClock;
-	var H;
-	var M;
-	var S;
-	var StrM;
-	var StrS;
-	var PrintableClock;
-
-	countClockConnected++;
-	countClockConnected %= 10;
-	for (var i=0; i<NumUsrsCon; i++) {
-		BoxClock = document.getElementById('hm'+i);
-		if (BoxClock) {
-			ListSeconds[i] += 1;
-			if (!countClockConnected) {	// Print after 10 seconds
-				M = Math.floor(ListSeconds[i] / 60);
-				if (M >= 60) {
-					H = Math.floor(M / 60);
-					M %= 60;
-				} else
-					H = 0;
-				S = ListSeconds[i] % 60;
-				if (H != 0) {
-					StrM = ((M < 10) ? '0' : '') + M;
-					StrS = ((S < 10) ? '0' : '') + S;
-					PrintableClock = H + ':' + StrM + '&prime;' + StrS + '&Prime;';
-				} else if (M != 0) {
-					StrS = ((S < 10) ? '0' : '') + S;
-					PrintableClock = M + '&prime;' + StrS + '&Prime;';
-				} else
-					PrintableClock = S + '&Prime;';
-				BoxClock.innerHTML = PrintableClock;
-			}
-		}
-	}
-	setTimeout('writeClockConnected()',1000);	// refresh after 1 second
-}
-
-/*****************************************************************************/
-/************* Automatic refresh of connected users using AJAX ***************/
-/*****************************************************************************/
-
-// This function must be called from time to time
-var objXMLHttpReqCon = false;
-function refreshConnected () {
-	objXMLHttpReqCon = AJAXCreateObject();
-	if (objXMLHttpReqCon) {
-		var RefreshParams = RefreshParamNxtActCon + '&' +
-							RefreshParamIdSes + '&' +
-							RefreshParamCrsCod;
-
-		objXMLHttpReqCon.onreadystatechange = readConnUsrsData;	// onreadystatechange must be lowercase
-		objXMLHttpReqCon.open('POST',ActionAJAX,true);
-		objXMLHttpReqCon.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttpReqCon.send(RefreshParams);
-	}
-}
-
-// Receive and show connected users data
-function readConnUsrsData () {
-	if (objXMLHttpReqCon.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqCon.status == 200) {
-			var endOfDelay   = objXMLHttpReqCon.responseText.indexOf('|',0);				// Get separator position
-			var endOfNotif   = objXMLHttpReqCon.responseText.indexOf('|',endOfDelay  + 1);	// Get separator position
-			var endOfGblCon  = objXMLHttpReqCon.responseText.indexOf('|',endOfNotif  + 1);	// Get separator position
-			var endOfCrsCon  = objXMLHttpReqCon.responseText.indexOf('|',endOfGblCon + 1);	// Get separator position
-			var endOfNumUsrs = objXMLHttpReqCon.responseText.indexOf('|',endOfCrsCon + 1);	// Get separator position
-
-			var delay = parseInt(objXMLHttpReqCon.responseText.substring(0,endOfDelay));			// Get refresh delay
-			var htmlNotif  = objXMLHttpReqCon.responseText.substring(endOfDelay  + 1,endOfNotif);	// Get HTML code for new notifications
-			var htmlGblCon = objXMLHttpReqCon.responseText.substring(endOfNotif  + 1,endOfGblCon);	// Get HTML code for connected
-			var htmlCrsCon = objXMLHttpReqCon.responseText.substring(endOfGblCon + 1,endOfCrsCon);	// Get HTML code for course connected
-			var NumUsrsStr = objXMLHttpReqCon.responseText.substring(endOfCrsCon + 1,endOfNumUsrs);	// Get number of users
-			var startOfUsr;
-			var endOfUsr;
-
-			NumUsrsCon = (NumUsrsStr.length ? parseInt(NumUsrsStr) : 0);
-
-			var divNewNotif = document.getElementById('msg');			// Access to new notifications DIV
-			if (divNewNotif)
-				divNewNotif.innerHTML = (htmlNotif.length) ? htmlNotif : '';	// Update new notifications DIV
-
-			var divGblConnected = document.getElementById('globalconnected');	// Access to global connected DIV
-			if (divGblConnected)
-				divGblConnected.innerHTML = htmlGblCon;				// Update global connected DIV
-			if (htmlCrsCon.length) {
-				var divCrsConnected = document.getElementById('courseconnected');	// Access to course connected DIV
-				if (divCrsConnected) {
-					divCrsConnected.innerHTML = htmlCrsCon;				// Update course connected DIV
-					countClockConnected = 0;	// Don't refresh again using writeClockConnected until past 10 seconds
-					startOfUsr = endOfNumUsrs + 1;
-					for (var NumUsr=0; NumUsr<NumUsrsCon; NumUsr++) {
-						endOfUsr = objXMLHttpReqCon.responseText.indexOf('|',startOfUsr + 1);
-						ListSeconds[NumUsr] = parseInt(objXMLHttpReqCon.responseText.substring(startOfUsr,endOfUsr));
-						startOfUsr = endOfUsr + 1;
-					}
-				}
-			}
-
-			if (delay >= 60000)	// If refresh slower than 1 time each 60 seconds, do refresh; else abort
-				setTimeout('refreshConnected()',delay);
-		}
-	}
-}
-
-/*****************************************************************************/
-/******* Automatic refresh of current exam event question using AJAX *********/
-/*****************************************************************************/
-
-//  This function must be called from time to time
-var objXMLHttpReqExaEvtStd = false;
-function refreshExamEventStd () {
-	objXMLHttpReqExaEvtStd = AJAXCreateObject();
-	if (objXMLHttpReqExaEvtStd) {
-		var RefreshParams = RefreshParamNxtActExaEvt + '&' +
-							RefreshParamExaEvtCod + '&' +
-							RefreshParamIdSes;
-
-		objXMLHttpReqExaEvtStd.onreadystatechange = readExamEventStdData;	// onreadystatechange must be lowercase
-		objXMLHttpReqExaEvtStd.open('POST',ActionAJAX,true);
-		objXMLHttpReqExaEvtStd.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
-		objXMLHttpReqExaEvtStd.send(RefreshParams);
-	}
-}
-
-function readExamEventStdData () {
-	if (objXMLHttpReqExaEvtStd.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqExaEvtStd.status == 200) {
-			var htmlExamEvent = objXMLHttpReqExaEvtStd.responseText;	// Get HTML code
-
-			var div = document.getElementById('exam_event');	// Access to refreshable DIV
-			if (div)
-				div.innerHTML = htmlExamEvent;					// Update DIV content
-			// Global delay variable is set initially in swad-core
-			setTimeout('refreshExamEventStd()',delayExamEvent);
-		}
-	}
-}
-
-/*****************************************************************************/
-/** Automatic refresh of left part of current exam event question using AJAX **/
-/*****************************************************************************/
-
-//This function must be called from time to time
-var objXMLHttpReqExaEvtTch = false;
-function refreshExamEventTch () {
-	objXMLHttpReqExaEvtTch = AJAXCreateObject();
-	if (objXMLHttpReqExaEvtTch) {
-		var RefreshParams = RefreshParamNxtActExaEvt + '&' +
-							RefreshParamExaEvtCod + '&' +
-							RefreshParamIdSes;
-
-		objXMLHttpReqExaEvtTch.onreadystatechange = readExamEventTchData;	// onreadystatechange must be lowercase
-		objXMLHttpReqExaEvtTch.open('POST',ActionAJAX,true);
-		objXMLHttpReqExaEvtTch.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
-		objXMLHttpReqExaEvtTch.send(RefreshParams);
-	}
-}
-
-function readExamEventTchData () {
-	if (objXMLHttpReqExaEvtTch.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqExaEvtTch.status == 200) {
-			var endOfId = objXMLHttpReqExaEvtTch.responseText.indexOf('|',0           );	// Get separator position
-			var endOfEv = objXMLHttpReqExaEvtTch.responseText.indexOf('|',endOfId  + 1);	// Get separator position
-
-			var id   = objXMLHttpReqExaEvtTch.responseText.substring(0          ,endOfId);	// Get id
-			var ev   = objXMLHttpReqExaEvtTch.responseText.substring(endOfId + 1,endOfEv);	// Get ev ('0' / '1')
-			var html = objXMLHttpReqExaEvtTch.responseText.substring(endOfEv + 1);			// Get HTML code
-
-			var div = document.getElementById(id);	// Access to refreshable DIV
-			if (div) {
-				div.innerHTML = html;				// Update DIV content
-			
-				if (parseInt(ev)) {	// 0 / 1
-					// Scripts in div got via AJAX are not executed ==> execute them
-					evalScriptsInElem (div);
-
-					// Process mathematics; see http://docs.mathjax.org/en/latest/advanced/typeset.html
-					// MathJax.Hub.Queue(["Typeset",MathJax.Hub,div]);	// old versions
-					MathJax.typeset();
-				}
-			}
-			
-			// Global delay variable is set initially in swad-core
-			setTimeout('refreshExamEventTch()',delayExamEvent);
-		}
-	}
-}
-
-/*****************************************************************************/
-/**************** Update exam event control area using AJAX ******************/
-/*****************************************************************************/
-
-// This function is called when user submit a form inside two parent divs
-function updateExamEventTch (id,Params) {
-    var objXMLHttp = false;
-
-	objXMLHttp = AJAXCreateObject ();
-	if (objXMLHttp) {
-		/* Send request to server */
-		objXMLHttp.onreadystatechange = function() {	// onreadystatechange must be lowercase
-			if (objXMLHttp.readyState == 4) {			// Check if data have been received
-				if (objXMLHttp.status == 200)
-					if (id) {
-						var div = document.getElementById(id);			// Access to DIV
-						if (div)
-							div.innerHTML = objXMLHttp.responseText;	// Update DIV content
-					}
-			}
-		};
-		objXMLHttp.open('POST',ActionAJAX,true);
-		objXMLHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttp.send(Params);
-	}
-}
-
-/*****************************************************************************/
-/********** Automatic refresh of current match question using AJAX ***********/
-/*****************************************************************************/
-
-//  This function must be called from time to time
-var objXMLHttpReqMchStd = false;
-function refreshMatchStd () {
-	objXMLHttpReqMchStd = AJAXCreateObject();
-	if (objXMLHttpReqMchStd) {
-		var RefreshParams = RefreshParamNxtActMch + '&' +
-							RefreshParamMchCod + '&' +
-							RefreshParamIdSes;
-
-		objXMLHttpReqMchStd.onreadystatechange = readMatchStdData;	// onreadystatechange must be lowercase
-		objXMLHttpReqMchStd.open('POST',ActionAJAX,true);
-		objXMLHttpReqMchStd.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
-		objXMLHttpReqMchStd.send(RefreshParams);
-	}
-}
-
-function readMatchStdData () {
-	if (objXMLHttpReqMchStd.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqMchStd.status == 200) {
-			var htmlMatch = objXMLHttpReqMchStd.responseText;	// Get HTML code
-
-			var div = document.getElementById('match');	// Access to refreshable DIV
-			if (div)
-				div.innerHTML = htmlMatch;				// Update DIV content
-			// Global delay variable is set initially in swad-core
-			setTimeout('refreshMatchStd()',delayMatch);
-		}
-	}
-}
-
-/*****************************************************************************/
-/**** Automatic refresh of left part of current match question using AJAX ****/
-/*****************************************************************************/
-
-//This function must be called from time to time
-var objXMLHttpReqMchTch = false;
-function refreshMatchTch () {
-	objXMLHttpReqMchTch = AJAXCreateObject();
-	if (objXMLHttpReqMchTch) {
-		var RefreshParams = RefreshParamNxtActMch + '&' +
-							RefreshParamMchCod + '&' +
-							RefreshParamIdSes;
-
-		objXMLHttpReqMchTch.onreadystatechange = readMatchTchData;	// onreadystatechange must be lowercase
-		objXMLHttpReqMchTch.open('POST',ActionAJAX,true);
-		objXMLHttpReqMchTch.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
-		objXMLHttpReqMchTch.send(RefreshParams);
-	}
-}
-
-function readMatchTchData () {
-	if (objXMLHttpReqMchTch.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqMchTch.status == 200) {
-			var endOfId = objXMLHttpReqMchTch.responseText.indexOf('|',0           );	// Get separator position
-			var endOfEv = objXMLHttpReqMchTch.responseText.indexOf('|',endOfId  + 1);	// Get separator position
-
-			var id   = objXMLHttpReqMchTch.responseText.substring(0          ,endOfId);	// Get id
-			var ev   = objXMLHttpReqMchTch.responseText.substring(endOfId + 1,endOfEv);	// Get ev ('0' / '1')
-			var html = objXMLHttpReqMchTch.responseText.substring(endOfEv + 1);			// Get HTML code
-
-			var div = document.getElementById(id);	// Access to refreshable DIV
-			if (div) {
-				div.innerHTML = html;				// Update DIV content
-			
-				if (parseInt(ev)) {	// 0 / 1
-					// Scripts in div got via AJAX are not executed ==> execute them
-					evalScriptsInElem (div);
-
-					// Process mathematics; see http://docs.mathjax.org/en/latest/advanced/typeset.html
-					// MathJax.Hub.Queue(["Typeset",MathJax.Hub,div]);	// old versions
-					MathJax.typeset();
-				}
-			}
-			
-			// Global delay variable is set initially in swad-core
-			setTimeout('refreshMatchTch()',delayMatch);
-		}
-	}
-}
-
-/*****************************************************************************/
-/****************** Update match control area using AJAX *********************/
-/*****************************************************************************/
-
-// This function is called when user submit a form inside two parent divs
-function updateMatchTch (id,Params) {
-    var objXMLHttp = false;
-
-	objXMLHttp = AJAXCreateObject ();
-	if (objXMLHttp) {
-		/* Send request to server */
-		objXMLHttp.onreadystatechange = function() {	// onreadystatechange must be lowercase
-			if (objXMLHttp.readyState == 4) {			// Check if data have been received
-				if (objXMLHttp.status == 200)
-					if (id) {
-						var div = document.getElementById(id);			// Access to DIV
-						if (div)
-							div.innerHTML = objXMLHttp.responseText;	// Update DIV content
-					}
-			}
-		};
-		objXMLHttp.open('POST',ActionAJAX,true);
-		objXMLHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttp.send(Params);
-	}
-}
-
-/*****************************************************************************/
-/**************** Automatic refresh of last clicks using AJAX ****************/
-/*****************************************************************************/
-
-//  This function must be called from time to time
-var objXMLHttpReqLog = false;
-function refreshLastClicks () {
-	objXMLHttpReqLog = AJAXCreateObject();
-	if (objXMLHttpReqLog) {
-		var RefreshParams = RefreshParamNxtActLstClk + '&' +
-							RefreshParamIdSes + '&' +
-							RefreshParamCrsCod;
-
-		objXMLHttpReqLog.onreadystatechange = readLastClicksData;	// onreadystatechange must be lowercase
-		objXMLHttpReqLog.open('POST',ActionAJAX,true);
-		objXMLHttpReqLog.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
-		objXMLHttpReqLog.send(RefreshParams);
-	}
-}
-
-function readLastClicksData () {
-	if (objXMLHttpReqLog.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqLog.status == 200) {
-			var endOfDelay = objXMLHttpReqLog.responseText.indexOf('|',0);	// Get separator position
-
-			var delay = parseInt(objXMLHttpReqLog.responseText.substring(0,endOfDelay));	// Get refresh delay
-			var htmlLastClicks = objXMLHttpReqLog.responseText.substring(endOfDelay + 1);	// Get HTML code for last clicks
-
-			var divLastClicks = document.getElementById('lastclicks');			// Access to last click DIV
-			if (divLastClicks)
-				divLastClicks.innerHTML = htmlLastClicks;				// Update global connected DIV
-			if (delay > 200)	// If refresh slower than 1 time each 0.2 seconds, do refresh; else abort
-				setTimeout('refreshLastClicks()',delay);
-		}
-	}
-}
-
-/*****************************************************************************/
-/*** Automatically refresh new publications in social timeline using AJAX ****/
-/*****************************************************************************/
-
-// This function must be called from time to time
-var objXMLHttpReqNewTL = false;
-function refreshNewTL () {
-	objXMLHttpReqNewTL = AJAXCreateObject();
-	if (objXMLHttpReqNewTL) {
-		var RefreshParams = RefreshParamNxtActNewPub + '&' +
-							RefreshParamIdSes + '&' +
-							RefreshParamWho;
-
-		objXMLHttpReqNewTL.onreadystatechange = readNewTimelineData;	// onreadystatechange must be lowercase
-		objXMLHttpReqNewTL.open('POST',ActionAJAX,true);
-		objXMLHttpReqNewTL.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
-		objXMLHttpReqNewTL.send(RefreshParams);
-	}
-}
-
-// Receive and show new social timeline data
-function readNewTimelineData () {
-	if (objXMLHttpReqNewTL.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqNewTL.status == 200) {
-
-			var justNowTimeline = document.getElementById('just_now_timeline_list');// Access to UL for the just received timeline
-			if (justNowTimeline) {
-				justNowTimeline.innerHTML = objXMLHttpReqNewTL.responseText;	// Update list of publications in just now timeline		
-
-				var countJustNowTimeline = justNowTimeline.childNodes.length;
-				if (countJustNowTimeline) {	// New pubs just retrieved
-					// Scripts in timeline got via AJAX are not executed ==> execute them
-					evalScriptsInElem (justNowTimeline);
-
-					// Process mathematics; see http://docs.mathjax.org/en/latest/advanced/typeset.html
-					// MathJax.Hub.Queue(["Typeset",MathJax.Hub,justNowTimeline]);	// old versions
-					MathJax.typeset();
-
-					// Move just received timeline to top of new timeline
-					var newTimeline = document.getElementById('new_timeline_list');		// Access to UL with the new timeline
-
-					// Move all the LI elements in UL 'just_now_timeline_list' to the top of UL 'new_timeline_list'
-					for (var i=0; i<countJustNowTimeline; i++)
-						newTimeline.insertBefore(justNowTimeline.lastChild, newTimeline.childNodes[0]);
-
-					// Update number of new posts
-					var viewNewPostsCount = document.getElementById('view_new_posts_count');
-					viewNewPostsCount.innerHTML = newTimeline.childNodes.length;
-
-					// Display message with new posts if hidden
-					var viewNewPostsContainer = document.getElementById('view_new_posts_container');
-					viewNewPostsContainer.style.display = '';
-				}
-			}
-			
-			// Global delay variable is set initially in swad-core
-			delayNewTL += 1000;	// Increase 1 second
-			setTimeout('refreshNewTL()',delayNewTL);
-		}
-	}
-}
-
-/*****************************************************************************/
-/* View new publication in timeline by moving new timeline to top of timeline */
-/*****************************************************************************/
-
-function moveNewTimelineToTimeline () {
-	// Move all the LI elements in UL 'new_timeline_list' to the top of UL 'timeline_list'
-	var newTimeline = document.getElementById('new_timeline_list');
-	var countNewTimeline = newTimeline.childNodes.length;
-	if (countNewTimeline) {
-		var timeline = document.getElementById("timeline_list");
-		for (var i=0; i<countNewTimeline; i++) {
-			timeline.insertBefore(newTimeline.lastChild, timeline.childNodes[0]);
-			timeline.childNodes[0].className += " TL_NEW_PUB";
-		}
-    }
-
-	// Reset number of new posts after moving
-	var viewNewPostsCount = document.getElementById('view_new_posts_count');
-	viewNewPostsCount.innerHTML = 0;
-
-	// Hide link to view new posts after moving
-	var viewNewPostsContainer = document.getElementById('view_new_posts_container');
-	viewNewPostsContainer.style.display = 'none';
-}
-
-/*****************************************************************************/
-/********** Refresh old publications in social timeline using AJAX ***********/
-/*****************************************************************************/
-
-// This function is called when user clicks in link
-var objXMLHttpReqOldTL = false;
-function refreshOldTimeline () {
-	objXMLHttpReqOldTL = AJAXCreateObject ();
-	if (objXMLHttpReqOldTL) {
-		var RefreshParams = RefreshParamNxtActOldPub + '&' +
-							RefreshParamIdSes;
-		if (typeof RefreshParamUsr !== 'undefined') {
-			if (RefreshParamUsr.length)
-				RefreshParams += '&' + RefreshParamUsr;
-		}
-		if (typeof RefreshParamWho !== 'undefined') {
-			if (RefreshParamWho.length)
-				RefreshParams += '&' + RefreshParamWho;
-		}
-
-		objXMLHttpReqOldTL.onreadystatechange = readOldTimelineData;	// onreadystatechange must be lowercase
-		objXMLHttpReqOldTL.open('POST',ActionAJAX,true);
-		objXMLHttpReqOldTL.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttpReqOldTL.send(RefreshParams);
-	}
-}
-
-// Receive and show old social timeline data
-function readOldTimelineData () {
-	if (objXMLHttpReqOldTL.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqOldTL.status == 200) {
-			var oldTimeline = document.getElementById('old_timeline_list');	// Access to UL with the old timeline
-			if (oldTimeline) {
-				oldTimeline.innerHTML = objXMLHttpReqOldTL.responseText;		// Fill list of publications in old timeline
-
-				var countOldTimeline = oldTimeline.childNodes.length;
-				if (countOldTimeline) {
-					// Scripts in timeline got via AJAX are not executed ==> execute them
-					evalScriptsInElem (oldTimeline);
-
-					// Process mathematics; see http://docs.mathjax.org/en/latest/advanced/typeset.html
-					// MathJax.Hub.Queue(["Typeset",MathJax.Hub,oldTimeline]);	// old versions
-					MathJax.typeset();
-
-					// Move all the LI elements in UL 'old_timeline_list' to the bottom of UL 'timeline_list'
-					var timeline = document.getElementById("timeline_list");
-					for (var i=0; i<countOldTimeline; i++)
-						timeline.appendChild(oldTimeline.firstChild);
-						
-					// There may be more publications
-					document.getElementById('get_old_timeline').style.display='';			// Show icon to be hidden on click
-					document.getElementById('getting_old_timeline').style.display='none';	// Hide icon to be shown on click
-				}
-				else	// No old publications retrieved, so we have reached the oldest publication
-						// Hide container with link to get old publications
-					document.getElementById("view_old_posts_container").style.display = 'none';
-			}
-		}
-	}
-}
-
-/*****************************************************************************/
-/********** Scripts got via AJAX are not executed ==> execute them ***********/
-/*****************************************************************************/
-
-function evalScriptsInElem (elem) {
-	var scrs = elem.getElementsByTagName("script");
-	var s;
-	for (var i=0; i<scrs.length; i++) {
-		s = scrs[i].childNodes[0].nodeValue;
-		if (s != null) eval(s);
-	}
-}
-
-/*****************************************************************************/
-/************* Show hidden comments social timeline using AJAX ***************/
-/*****************************************************************************/
-
-//This function is called when user submit a form inside two parent divs
-function updateDivHiddenComments (form,Params) {
-    var objXMLHttp = false;
-	var id = form.parentNode.parentNode.id;
-
-	objXMLHttp = AJAXCreateObject ();
-	if (objXMLHttp) {
-		/* Send request to server */
-		objXMLHttp.onreadystatechange = function() {	// onreadystatechange must be lowercase
-			if (objXMLHttp.readyState == 4) {			// Check if data have been received
-				if (objXMLHttp.status == 200)
-					if (id) {
-						var div = document.getElementById(id);			// Access to DIV
-						if (div) {
-							div.innerHTML = objXMLHttp.responseText;	// Update DIV content
-						
-							// Scripts in div got via AJAX are not executed ==> execute them
-							evalScriptsInElem (div);
-	
-							// Process mathematics; see http://docs.mathjax.org/en/latest/advanced/typeset.html
-							// MathJax.Hub.Queue(["Typeset",MathJax.Hub,div]);	// old versions
-							MathJax.typeset();
-						}
-					}
-			}
-		};
-		objXMLHttp.open('POST',ActionAJAX,true);
-		objXMLHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttp.send(Params);
-	}
-}
-
-/*****************************************************************************/
-/********** Update fav or share area in social timeline using AJAX ***********/
-/*****************************************************************************/
-
-// This function is called when user submit a form just inside a parent div
-function updateDivLockUnlockProject (form,Params) {
-    var objXMLHttp = false;
-	var id = form.parentNode.id;
-
-	objXMLHttp = AJAXCreateObject ();
-	if (objXMLHttp) {
-		/* Send request to server */
-		objXMLHttp.onreadystatechange = function() {	// onreadystatechange must be lowercase
-			if (objXMLHttp.readyState == 4) {			// Check if data have been received
-				if (objXMLHttp.status == 200)
-					if (id) {
-						var div = document.getElementById(id);			// Access to DIV
-						if (div)
-							div.innerHTML = objXMLHttp.responseText;	// Update DIV content
-					}
-			}
-		};
-		objXMLHttp.open('POST',ActionAJAX,true);
-		objXMLHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttp.send(Params);
-	}
-}
-
-/*****************************************************************************/
-/************** Update lock/unlock area in project using AJAX ****************/
-/*****************************************************************************/
-
-// This function is called when user submit a form inside two parent divs
-function updateDivFaversSharers (form,Params) {
-    var objXMLHttp = false;
-	var id = form.parentNode.parentNode.id;
-
-	objXMLHttp = AJAXCreateObject ();
-	if (objXMLHttp) {
-		/* Send request to server */
-		objXMLHttp.onreadystatechange = function() {	// onreadystatechange must be lowercase
-			if (objXMLHttp.readyState == 4) {			// Check if data have been received
-				if (objXMLHttp.status == 200)
-					if (id) {
-						var div = document.getElementById(id);			// Access to DIV
-						if (div)
-							div.innerHTML = objXMLHttp.responseText;	// Update DIV content
-					}
-			}
-		};
-		objXMLHttp.open('POST',ActionAJAX,true);
-		objXMLHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttp.send(Params);
-	}
-}
-
-/*****************************************************************************/
-/*********************** Expand textarea when focus **************************/
-/*****************************************************************************/
-
-// Called from a textarea onfocus
-function expandTextarea (textareaElem,idButton,rows) {
-	textareaElem.rows = rows;
-	document.getElementById(idButton).style.display = '';
-}
-
-/*****************************************************************************/
-/**************************** Create AJAX object *****************************/
-/*****************************************************************************/
-
-// try is unknown in earlier versions of Netscape, but works in IE5
-function AJAXCreateObject () {
-	var obj = false;
-	if (window.XMLHttpRequest) {	// Mozilla, Safari,...
-		obj = new XMLHttpRequest();
-	} else if (window.ActiveXObject) {	// IE
-		try {
-			obj = new ActiveXObject('Msxml2.XMLHTTP');
-		} catch (e) {
-			try {
-				obj = new ActiveXObject('Microsoft.XMLHTTP');
-			} catch (e) {}
-		}
-	}
-	return obj;
-}
-
-/*****************************************************************************/
-/****************************** Media uploader *******************************/
-/*****************************************************************************/
-
-function mediaActivateMediaUploader (id) {
-	document.getElementById (id + '_med_ico').style.display = 'none';
-	document.getElementById (id + '_med_upl').style.display = '';
-}
-
-function mediaClickOnActivateUpload (id) {
-	var par_upl	= document.getElementById (id + '_par_upl');
-
-	if (par_upl.disabled) {				// Click on highlighted icon
-		//  par_upl already got
-		var par_you = document.getElementById (id + '_par_you');
-		var par_emb = document.getElementById (id + '_par_emb');
-
-		var ico_upl	= document.getElementById (id + '_ico_upl');
-		var ico_you	= document.getElementById (id + '_ico_you');
-		var ico_emb	= document.getElementById (id + '_ico_emb');
-
-		var fil		= document.getElementById (id + '_fil');
-		var url		= document.getElementById (id + '_url');
-		var tit		= document.getElementById (id + '_tit');
-
-		// Enable embed, disable others
-	    par_upl.disabled = false;		// Enable upload
-	    par_you.disabled = true;		// Disable youtube
-	    par_emb.disabled = true;		// Disable embed
-
-		ico_upl.className = 'PREF_ON';	// Highlighted upload icon
-		ico_you.className = 'PREF_OFF';	// Normal youtube icon
-		ico_emb.className = 'PREF_OFF';	// Normal embed icon
-
-		fil.style.display  = '';		// Show file input
-		fil.disabled = false;			// Enable file input
-
-		url.style.display = '';			// Show URL input
-		url.disabled = false;			// Enable URL input
-
-		tit.style.display = '';			// Show title input
-		tit.disabled = false;			// Enable title input
-	}
-	else								// Click on shadowed icon
-	    mediaDisableAll (id);
-}
-
-function mediaClickOnActivateYoutube (id) {
-	var par_you	= document.getElementById (id + '_par_you');
-
-	if (par_you.disabled) {				// Click on highlighted icon
-		var par_upl = document.getElementById (id + '_par_upl');
-		//  par_you already got
-		var par_emb = document.getElementById (id + '_par_emb');
-
-		var ico_upl	= document.getElementById (id + '_ico_upl');
-		var ico_you	= document.getElementById (id + '_ico_you');
-		var ico_emb	= document.getElementById (id + '_ico_emb');
-
-		var fil		= document.getElementById (id + '_fil');
-		var url		= document.getElementById (id + '_url');
-		var tit		= document.getElementById (id + '_tit');
-
-		// Enable youtube, disable others
-	    par_upl.disabled = true;		// Disable upload
-	    par_you.disabled = false;		// Enable youtube
-	    par_emb.disabled = true;		// Disable embed
-
-		ico_upl.className = 'PREF_OFF';	// Normal upload icon
-		ico_you.className = 'PREF_ON';	// Highlighted youtube icon
-		ico_emb.className = 'PREF_OFF';	// Normal embed icon
-
-		fil.style.display  = 'none';	// Hide file input
-		fil.disabled = true;			// Disable file input
-
-		url.style.display = '';			// Show URL input
-		url.disabled = false;			// Enable URL input
-
-		tit.style.display = 'none';		// Hide title input
-		tit.disabled = true;			// Disable title input
-	}
-	else								// Click on shadowed icon
-	    mediaDisableAll (id);
-}
-
-function mediaClickOnActivateEmbed (id) {
-	var par_emb	= document.getElementById (id + '_par_emb');
-
-	if (par_emb.disabled) {				// Click on highlighted icon
-		var par_upl = document.getElementById (id + '_par_upl');
-		var par_you = document.getElementById (id + '_par_you');
-		//  par_emb already got
-
-		var ico_upl	= document.getElementById (id + '_ico_upl');
-		var ico_you	= document.getElementById (id + '_ico_you');
-		var ico_emb	= document.getElementById (id + '_ico_emb');
-
-		var fil		= document.getElementById (id + '_fil');
-		var url		= document.getElementById (id + '_url');
-		var tit		= document.getElementById (id + '_tit');
-
-		// Enable embed, disable others
-	    par_upl.disabled = true;		// Disable upload
-	    par_you.disabled = true;		// Disable youtube
-	    par_emb.disabled = false;		// Enable embed
-
-		ico_upl.className = 'PREF_OFF';	// Normal upload icon
-		ico_you.className = 'PREF_OFF';	// Normal youtube icon
-		ico_emb.className = 'PREF_ON';	// Highlighted embed icon
-
-		fil.style.display  = 'none';	// Hide file input
-		fil.disabled = true;			// Disable file input
-
-		url.style.display = '';			// Show URL input
-		url.disabled = false;			// Enable URL input
-
-		tit.style.display = 'none';		// Hide title input
-		tit.disabled = true;			// Disable title input
-	}
-	else								// Click on shadowed icon
-	    mediaDisableAll (id);
-}
-
-function mediaDisableAll (id) {
-	var par_upl = document.getElementById (id + '_par_upl');
-	var par_you	= document.getElementById (id + '_par_you');
-	var par_emb	= document.getElementById (id + '_par_emb');
-
-	var ico_upl	= document.getElementById (id + '_ico_upl');
-	var ico_you	= document.getElementById (id + '_ico_you');
-	var ico_emb	= document.getElementById (id + '_ico_emb');
-
-	var fil		= document.getElementById (id + '_fil');
-	var url		= document.getElementById (id + '_url');
-	var tit		= document.getElementById (id + '_tit');
-
-    par_upl.disabled = true;		// Disable upload
-    par_you.disabled = true;		// Disable youtube
-    par_emb.disabled = true;		// Disable embed
-
-	ico_upl.className = 'PREF_OFF';	// Normal upload icon
-	ico_you.className = 'PREF_OFF';	// Normal youtube icon
-	ico_emb.className = 'PREF_OFF';	// Normal embed icon
-
-	fil.style.display = 'none';		// Hide file input
-	fil.disabled = true;			// Disable file input
-
-	url.style.display = 'none';		// Hide URL input
-	url.disabled = true;			// Disable URL input
-
-	tit.style.display = 'none';		// Hide title input
-	tit.disabled = true;			// Disable title input
-}
-
-/*****************************************************************************/
-/********************** Change display of animated GIF ***********************/
-/*****************************************************************************/
-// elem should be a DIV with two children: IMG and SPAN
-
-function toggleOnGIF (elem, animatedURL) {
-	var c = elem.children;
-
-	for (var i = 0; i < c.length; i++) {
-		var child = c[i];
-
-		if (child.nodeName == 'IMG')
-			/* Display animated image */
-			child.src = animatedURL;
-		else if (child.nodeName == 'SPAN')
-			/* Hide the span element showing "GIF" */
-			child.style.display = 'none';
-	}
-}
-
-function toggleOffGIF (elem, staticURL) {
-	var c = elem.children;
-
-	for (var i = 0; i < c.length; i++) {
-		var child = c[i];
-
-		if (child.nodeName == 'IMG')
-			/* Display static image */
-			child.src = staticURL;
-		else if (child.nodeName == 'SPAN')
-			/* Make visible the span element showing "GIF" */
-			child.style.display = '';
-	}
-}
-
-/*****************************************************************************/
-/******* Change display of edition of a new comment in a social note *********/
-/*****************************************************************************/
-
-function toggleNewComment (id) {
-	var iconDiv = document.getElementById (id + '_ico');
-
-	if (iconDiv.className == 'TL_ICO_COM_OFF')
-		iconDiv.className = 'TL_ICO_COM_ON';
-	else
-		iconDiv.className = 'TL_ICO_COM_OFF';
-	toggleDisplay(id);
-}
-
-/*****************************************************************************/
-/*************** Change display of comments in a social note *****************/
-/*****************************************************************************/
-
-function toggleComments (notID) {
-	toggleDisplay('con_' + notID);
-	toggleDisplay('com_' + notID);
-	toggleDisplay('exp_' + notID);
-}
-
-/*****************************************************************************/
-/************************ Change display of a project ************************/
-/*****************************************************************************/
-
-function toggleProject (prjID) {
-	toggleDisplay('prj_exp_' + prjID);
-	toggleDisplay('prj_con_' + prjID);
-	toggleDisplay('prj_pro_' + prjID);
-	toggleDisplay('prj_dsc_' + prjID);
-	toggleDisplay('prj_knw_' + prjID);
-	toggleDisplay('prj_mtr_' + prjID);
-	toggleDisplay('prj_url_' + prjID);
-}
-
-/*****************************************************************************/
-/********************** Change display of a test answer **********************/
-/*****************************************************************************/
-
-function toggleAnswer (option) {
-	toggleDisplay('ans_' + option);
-	toggleDisplay('con_' + option);
-	toggleDisplay('exp_' + option);
-}
-
-/*****************************************************************************/
-/************* Change display of an element (hidden or visible) **************/
-/*****************************************************************************/
-
-function toggleDisplay (elementID) {
-	var element = document.getElementById (elementID);
-	var stl;
-
-	if (element) {
-		stl = element.style;
-		stl.display = (stl.display === 'none') ? '' : 'none';
-	}
-}
-
-/*****************************************************************************/
-/************************ Zoom a user's photograph ***************************/
-/*****************************************************************************/
-
-// idCaption must be the id of a hidden div with the caption in innerHTML
-// (this allows showing &prime; and &Prime;)
-function zoom (img,urlPhoto,idCaption) {
-	var zoomImgWidth  = 186;	// big photo
-	var zoomImgHeight = 248;	// big photo
-	var padding = 7;			// padding around big photo including border
-	var xPos = img.offsetLeft;
-	var yPos = img.offsetTop;
-	var tempEl = img.offsetParent;
-
-	while (tempEl != null) {
-		xPos += tempEl.offsetLeft;
-		yPos += tempEl.offsetTop;
-		tempEl = tempEl.offsetParent;
-	}
-	if (xPos - (zoomImgWidth + padding*2) >= 0)
-	   xPos -= (zoomImgWidth + padding*2);	// zoom at left of the photo
-	else
-	   xPos += img.width + 1;				// zoom at right of the photo
-	yPos = yPos + img.height - zoomImgHeight - padding;
-	if (yPos < 0)
-	   yPos = 0;
-	document.getElementById('zoomLyr').style.left = xPos + 'px';
-	document.getElementById('zoomLyr').style.top  = yPos + 'px';
-	document.getElementById('zoomImg').src = urlPhoto;
-	document.getElementById('zoomTxt').innerHTML = document.getElementById(idCaption).innerHTML;
-}
-
-// Exit from zooming a user's photograph
-function noZoom () {
-	var xPos = -(187 + 15);
-	var yPos = -(250 + 15 + 110);
-	document.getElementById('zoomTxt').innerHTML = '';
-	document.getElementById('zoomImg').src='/swad/icon/usr_bl.jpg';
-	document.getElementById('zoomLyr').style.left = xPos + 'px';
-	document.getElementById('zoomLyr').style.top = yPos + 'px';
-}
-
-/*****************************************************************************/
-/****************** Related to radio and checkbox elements *******************/
-/*****************************************************************************/
-
-// Select or unselect a radio element in a form
-function selectUnselectRadio (radio,groupRadios,numRadiosInGroup){
-	if (radio.IsChecked) radio.checked = false;
-	radio.IsChecked = !radio.IsChecked;
-	for (var i=0; i<numRadiosInGroup; i++)
-		if (groupRadios[i] != radio) groupRadios[i].IsChecked = 0;
-}
-
-// Activate a parent checkbox when all children checkboxes are activated
-// Deactivate a parent checkbox when any child checkbox is deactivated
-function checkParent (CheckBox, MainCheckbox) {
-	var IsChecked = true, i, Formul = CheckBox.form;
-	for (i=0; i<Formul.elements.length; i++)
-		if (Formul.elements[i].name == CheckBox.name)
-			if (!(Formul.elements[i].checked)) { IsChecked = false; break; }
-	Formul[MainCheckbox].checked = IsChecked;
-}
-// Activate all children checkboxes when parent checkbox is activated
-// Deactivate all children checkboxes when parent checkbox is deactivated
-function togglecheckChildren (MainCheckbox, GroupCheckboxes) {
-	var i, Formul = MainCheckbox.form;
-	for (i=0; i<Formul.elements.length; i++)
-		if (Formul.elements[i].name == GroupCheckboxes) Formul.elements[i].checked = MainCheckbox.checked;
-}
-
-// Deactivate a parent checkbox when any child checkbox is activated
-// Activate a parent checkbox when all children checkboxes are deactivated
-function uncheckParent (CheckBox, MainCheckbox) {
-	var IsChecked = false, i, Formul = CheckBox.form;
-	for (i=0; i<Formul.elements.length; i++)
-		if (Formul.elements[i].name == CheckBox.name)
-			if (Formul.elements[i].checked) { IsChecked = true; break; }
-	Formul[MainCheckbox].checked = !IsChecked;
-}
-// Deactivate all children checkboxes when parent checkbox is activated
-function uncheckChildren (MainCheckbox, GroupCheckboxes) {
-	var i, Formul = MainCheckbox.form;
-	if (MainCheckbox.checked)
-		for (i=0; i<Formul.elements.length; i++)
-			if (Formul.elements[i].name == GroupCheckboxes) Formul.elements[i].checked = false;
-}
-
-/*****************************************************************************/
-/******************************* Related to tests ****************************/
-/*****************************************************************************/
-
-// Change text of a test tag
-function changeTxtTag (NumTag) {
-	var Sel = document.getElementById('SelTag' + NumTag);
-
-	document.getElementById('TagTxt' + NumTag).value = Sel.options[Sel.selectedIndex].value;
-}
-
-// Change selectors of test tags
-function changeSelTag (NumTag) {
-	var Sel = document.getElementById('SelTag'+NumTag);
-	var Txt = document.getElementById('TagTxt' +NumTag);
-
-	for (var i=0; i<Sel.options.length - 1; i++)
-		if (Sel.options[i].value.toUpperCase() == Txt.value.toUpperCase()) {
-			Sel.options[i].selected = true;
-			Txt.value = Sel.options[i].value;
-			break;
-		}
-	if (i == Sel.options.length - 1) // End reached without matching
-		Sel.options[i].selected = true;
-}
-
-// Activate or deactivate answer types of a test question
-function enableDisableAns (Formul) {
-	var Tst_ANS_INT				= 0;
-	var Tst_ANS_FLOAT			= 1;
-	var Tst_ANS_TRUE_FALSE		= 2;
-	var Tst_ANS_UNIQUE_CHOICE	= 3;
-	var Tst_ANS_MULTIPLE_CHOICE	= 4;
-	var Tst_ANS_TEXT			= 5;
-
-	if (Formul.AnswerType[Tst_ANS_INT].checked){
-		for (var i=0; i<Formul.elements.length; i++)
-			if (Formul.elements[i].name == 'AnsInt')
-				Formul.elements[i].disabled = false;
-			else if (Formul.elements[i].name == 'AnsMulti'	||
-				Formul.elements[i].name == 'AnsFloatMin'	||
-				Formul.elements[i].name == 'AnsFloatMax'	||
-				Formul.elements[i].name == 'AnsTF'			||
-				Formul.elements[i].name == 'AnsUni'			||
-				Formul.elements[i].name == 'Shuffle')
-				Formul.elements[i].disabled = true;
-			else {
-				enableDisableStrAns(Formul.elements[i],true);
-				enableDisableImgAns(Formul.elements[i],true);
-			}
-	}
-	else if (Formul.AnswerType[Tst_ANS_FLOAT].checked){
-		for (var i=0; i<Formul.elements.length; i++)
-			if (Formul.elements[i].name == 'AnsFloatMin'	||
-				Formul.elements[i].name == 'AnsFloatMax')
-				Formul.elements[i].disabled = false;
-			else if (Formul.elements[i].name == 'AnsInt'	||
-				Formul.elements[i].name == 'AnsTF'			||
-				Formul.elements[i].name == 'AnsUni'			||
-				Formul.elements[i].name == 'AnsMulti'		||
-				Formul.elements[i].name == 'Shuffle')
-				Formul.elements[i].disabled = true;
-			else {
-				enableDisableStrAns(Formul.elements[i],true);
-				enableDisableImgAns(Formul.elements[i],true);
-			}
-	}
-	else if (Formul.AnswerType[Tst_ANS_TRUE_FALSE].checked){
-		for (var i=0; i<Formul.elements.length; i++)
-			if (Formul.elements[i].name == 'AnsTF')
-				Formul.elements[i].disabled = false;
-			else if (Formul.elements[i].name == 'AnsInt'	||
-				Formul.elements[i].name == 'AnsFloatMin'	||
-				Formul.elements[i].name == 'AnsFloatMax'	||
-				Formul.elements[i].name == 'AnsUni'			||
-				Formul.elements[i].name == 'AnsMulti'		||
-				Formul.elements[i].name == 'Shuffle')
-				Formul.elements[i].disabled = true;
-			else {
-				enableDisableStrAns(Formul.elements[i],true);
-				enableDisableImgAns(Formul.elements[i],true);
-			}
-	}
-	else if (Formul.AnswerType[Tst_ANS_UNIQUE_CHOICE].checked){
-		for (var i=0; i<Formul.elements.length; i++)
-			if (Formul.elements[i].name == 'AnsUni'	||
-				Formul.elements[i].name == 'Shuffle')
-				Formul.elements[i].disabled = false;
-			else if (Formul.elements[i].name == 'AnsInt'		||
-					 Formul.elements[i].name == 'AnsFloatMin'	||
-					 Formul.elements[i].name == 'AnsFloatMax'	||
-					 Formul.elements[i].name == 'AnsTF'			||
-					 Formul.elements[i].name == 'AnsMulti')
-				Formul.elements[i].disabled = true;
-			else {
-				enableDisableStrAns(Formul.elements[i],false);
-				enableDisableImgAns(Formul.elements[i],false);
-			}
-	}
-	else if (Formul.AnswerType[Tst_ANS_MULTIPLE_CHOICE].checked){
-		for (var i=0; i<Formul.elements.length; i++)
-			if (Formul.elements[i].name == 'AnsMulti'	||
-				Formul.elements[i].name == 'Shuffle')
-				Formul.elements[i].disabled = false;
-			else if (Formul.elements[i].name == 'AnsInt'		||
-					 Formul.elements[i].name == 'AnsFloatMin'	||
-					 Formul.elements[i].name == 'AnsFloatMax'	||
-					 Formul.elements[i].name == 'AnsTF'			||
-					 Formul.elements[i].name == 'AnsUni')
-				Formul.elements[i].disabled = true;
-			else {
-				enableDisableStrAns(Formul.elements[i],false);
-				enableDisableImgAns(Formul.elements[i],false);
-			}
-	}
-	else if (Formul.AnswerType[Tst_ANS_TEXT].checked){
-		for (var i=0; i<Formul.elements.length; i++)
-			if (Formul.elements[i].name == 'AnsInt'			||
-				Formul.elements[i].name == 'AnsFloatMin'	||
-				Formul.elements[i].name == 'AnsFloatMax'	||
-				Formul.elements[i].name == 'AnsTF'			||
-				Formul.elements[i].name == 'AnsUni'			||
-				Formul.elements[i].name == 'AnsMulti')
-				Formul.elements[i].disabled = true;
-			else {
-				enableDisableStrAns(Formul.elements[i],false);
-				enableDisableImgAns(Formul.elements[i],true);
-			}
-	}
-}
-
-// Activate or deactivate answer strings and feedback of a test question
-function enableDisableStrAns (elem, isDisabled) {
-	var Tst_MAX_OPTIONS_PER_QUESTION = 10;
-
-	for (var i = 0; i < Tst_MAX_OPTIONS_PER_QUESTION; i++)
-		if (elem.name == ('AnsStr' + i) ||
-			elem.name == ('FbStr'  + i))
-			elem.disabled = isDisabled;
-}
-
-//Activate or deactivate answer images of a test question
-function enableDisableImgAns (elem, isDisabled) {
-	var Tst_MAX_OPTIONS_PER_QUESTION = 10;
-
-	for (var i = 0; i < Tst_MAX_OPTIONS_PER_QUESTION; i++)
-		if (elem.name == ('MedAct' + i) ||
-			elem.name == ('MedFil' + i) ||
-			elem.name == ('MedTit' + i) ||
-			elem.name == ('MedURL' + i))
-			elem.disabled = isDisabled;
-}
-
-/*****************************************************************************/
-/********** Selection of statistics about hits in current course *************/
-/*****************************************************************************/
-
-function enableDetailedClicks () {
-	document.getElementById('CountType').disabled = true;
-	document.getElementById('GroupedBy').disabled = true;
-	document.getElementById('RowsPage').disabled = false;
-}
-
-function disableDetailedClicks () {
-	document.getElementById('CountType').disabled = false;
-	document.getElementById('GroupedBy').disabled = false;
-	document.getElementById('RowsPage').disabled = true;
-}
-
-/*****************************************************************************/
-/************************* Draw an academic calendar *************************/
-/*****************************************************************************/
-
-function Cal_DrawCalendar (id,FirstDayOfWeek,TimeUTC,CurrentPlcCod,PrintView,
-						   CGI,FormGoToCalendarParams,FormEventParams) {
-	var StartingMonth = [	// Calendar starts one row before current month
-		10,	// January   --> October
-		10,	// February  --> October
-		10,	// Mars      --> October
-		 1,	// April     --> January
-		 1,	// May       --> January
-		 1,	// June      --> January
-		 4,	// July      --> April
-		 4,	// August    --> April
-		 4,	// September --> April
-		 7,	// October   --> July
-		 7,	// November  --> July
-		 7	// December  --> July
-	];
-	var d = new Date();
-	d.setTime(TimeUTC * 1000);
-	var CurrentMonth = d.getMonth() + 1;
-	var CurrentYear = d.getFullYear();
-	var CurrentDay = d.getDate();
-	var Month = StartingMonth[CurrentMonth - 1];
-	var Year = (Month < CurrentMonth) ? CurrentYear :
-										CurrentYear - 1;
-	var Row;
-	var Col;
-	var MonthIdNum = 0;
-	var MonthId;
-
-	/***** Draw several months *****/
-	Gbl_HTMLContent += '<table class="CALENDAR">';
-
-	for (Row = 0;
-		 Row < 5;
-		 Row++) {
-		Gbl_HTMLContent += '<tr>';
-		for (Col = 0;
-			 Col < 3;
-			 Col++) {
-			MonthIdNum++;
-			MonthId = id + '_month_' + MonthIdNum;
-
-			Gbl_HTMLContent += '<td class="CT" style="width:150px;">';
-			DrawMonth (MonthId,FirstDayOfWeek,Year,Month,CurrentMonth,CurrentDay,
-						CurrentPlcCod,true,PrintView,CGI,
-						FormGoToCalendarParams,FormEventParams);
-			Gbl_HTMLContent += '</td>';
-			if (++Month == 13) {
-				Month = 1;
-				Year++;
-			}
-		}
-		Gbl_HTMLContent += '</tr>';
-	}
-	Gbl_HTMLContent += '</table>';
-
-	document.getElementById(id).innerHTML = Gbl_HTMLContent;
-}
-
-/*****************************************************************************/
-/***************************** Draw current month ****************************/
-/*****************************************************************************/
-
-function DrawCurrentMonth (id,FirstDayOfWeek,TimeUTC,CurrentPlcCod,
-						   CGI,FormGoToCalendarParams,FormEventParams) {
-	var d = new Date();
-	d.setTime(TimeUTC * 1000);
-	var Year = d.getFullYear();
-	var Month = d.getMonth() + 1;
-	var CurrentDay = d.getDate();
-
-	DrawMonth (id,FirstDayOfWeek,Year,Month,Month,CurrentDay,
-				CurrentPlcCod,false,false,
-				CGI,FormGoToCalendarParams,FormEventParams);
-	document.getElementById(id).innerHTML = Gbl_HTMLContent;
-}
-
-/*****************************************************************************/
-/******************************* Draw a month ********************************/
-/*****************************************************************************/
-// FirstDayOfWeek == 0 ==> Weeks from Monday to Sunday
-// FirstDayOfWeek == 6 ==> Weeks from Sunday to Saturday
-
-function DrawMonth (id,FirstDayOfWeek,YearToDraw,MonthToDraw,CurrentMonth,CurrentDay,
-					CurrentPlcCod,DrawingCalendar,PrintView,
-					CGI,FormGoToCalendarParams,FormEventParams) {
-	var Hld_HOLIDAY = 0;
-	var Hld_NON_SCHOOL_PERIOD = 1;
-	var Yea = YearToDraw;
-	var Mon = MonthToDraw;
-	var Day;
-	var ExaCod;
-	var StrMon;
-	var StrDay;
-	var StrDate;
-	var Week;
-	var DayOfWeek; /* 0, 1, 2, 3, 4, 5, 6 */
-	var NumDaysInMonth;
-	var YYYYMMDD;
-	var NumHld;
-	var ClassForDay; // Class of day depending on type of day
-	var TextForDay; // Text associated to a day, for example the name of the holiday
-	var NumExamAnnouncement; // Number of exam announcement
-	var ResultOfCmpStartDate;
-	var ContinueSearching;
-	var ThisDayHasEvent;
-	var IsToday;
-	var FormIdNum = 0;
-	var FormId;
-
-	/***** Compute number of day of month for the first box *****/
-	/* The initial day of month can be -5, -4, -3, -2, -1, 0, or 1
-	   If it's -5 then write 6 boxes of the previous month.
-	   If it's -4 then write 5 boxes of the previous month.
-	   If it's -3 then write 4 boxes of the previous month.
-	   If it's -2 then write 3 boxes of the previous month.
-	   If it's -1 then write 2 boxes of the previous month.
-	   If it's  0 then write 1 box   of the previous month.
-	   If it's  1 then write 0 boxes of the previous month. */
-
-	if ((DayOfWeek = (GetDayOfWeekMondayFirst (Yea,Mon,1) + 7 - FirstDayOfWeek) % 7) == 0)
-		Day = 1;
-	else {
-		if (Mon <= 1) {
-			Mon = 12;
-			Yea--;
-		} else
-			Mon--;
-		NumDaysInMonth = daysInMonth (Mon,Yea);
-		Day = NumDaysInMonth - DayOfWeek + 1;
-	}
-
-	/***** Start of month *****/
-	Gbl_HTMLContent += '<div class="MONTH_CONT">';
-
-	/***** Month name *****/
-	if (DrawingCalendar)
-		Gbl_HTMLContent += '<div class="MONTH">';
-	else {
-		FormId = id + '_show_calendar';
-		Gbl_HTMLContent += '<form method="post" action="' + CGI + '" id="' + FormId + '">' +
-							FormGoToCalendarParams +
-							'<div class="MONTH">' +
-							'<a href="" class="MONTH" onclick="document.getElementById(\'' + FormId +
-							'\').submit();return false;">';
-	}
-	Gbl_HTMLContent += Months[MonthToDraw - 1] + ' ' + YearToDraw;
-	if (DrawingCalendar)
-		Gbl_HTMLContent += '</div>';
-	else
-		Gbl_HTMLContent += '</a></div></form>';
-
-	/***** Month head: first letter for each day of week *****/
-	Gbl_HTMLContent += '<table class="MONTH_TABLE_DAYS">' + '<tr>';
-	for (DayOfWeek = 0; DayOfWeek < 7; DayOfWeek++)
-		Gbl_HTMLContent += '<td class="' +
-						   ((DayOfWeek == 6 - FirstDayOfWeek) ? 'DAY_NO_WRK_HEAD' :
-													            'DAY_WRK_HEAD') +
-						   '">' +
-						   DAYS_CAPS[(DayOfWeek + FirstDayOfWeek) % 7] +
-						   '</td>';
-	Gbl_HTMLContent += '</tr>';
-
-	/***** Draw every week of the month *****/
-	for (Week = 0;
-		 Week < 6;
-		 Week++) {
-		Gbl_HTMLContent += '<tr>';
-
-		/***** Draw every day of the week *****/
-		for (DayOfWeek = 0;
-			 DayOfWeek < 7;
-			 DayOfWeek++) {
-			/***** Set class for day being drawn *****/
-			ClassForDay = ((Mon == MonthToDraw) ? 'DAY_WRK' :
-												  'DAY_WRK_LIGHT');
-			TextForDay = '';
-
-			/* Check if day is a holiday or a school day */
-			YYYYMMDD = Yea * 10000 + Mon * 100 + Day;
-			for (NumHld = 0, ContinueSearching = true;
-				 NumHld < Hlds.length && ContinueSearching;
-				 NumHld++)
-				if (Hlds[NumHld].PlcCod <= 0 ||
-					Hlds[NumHld].PlcCod == CurrentPlcCod) {
-					if (Hlds[NumHld].StartDate > YYYYMMDD) // List is ordered by start date. If start date is greater than date being drawn, don't continue searching
-						ContinueSearching = false;
-					else
-						// start date <= date being drawn
-						switch (Hlds[NumHld].HldTyp) {
-							case Hld_HOLIDAY:
-								if (Hlds[NumHld].StartDate == YYYYMMDD) {	// If start date == date being drawn
-									ClassForDay = ((Mon == MonthToDraw) ? 'DAY_HLD' :
-																		  'DAY_HLD_LIGHT');
-									TextForDay = Hlds[NumHld].Name;
-									ContinueSearching = false;
-								}
-								break;
-							case Hld_NON_SCHOOL_PERIOD:
-								if (Hlds[NumHld].EndDate >= YYYYMMDD) {	// If start date <= date being drawn <= end date
-									ClassForDay = ((Mon == MonthToDraw) ? 'DAY_NO_WORK' :
-																		  'DAY_NO_WORK_LIGHT');
-									TextForDay = Hlds[NumHld].Name;
-								}
-								break;
-						}
-				}
-
-			/* Day being drawn is sunday? */
-			if (DayOfWeek == 6 - FirstDayOfWeek) // All the sundays are holidays
-				ClassForDay = (Mon == MonthToDraw) ? 'DAY_HLD' :
-													 'DAY_HLD_LIGHT';
-
-			/* Date being drawn is today? */
-			IsToday = (Yea == YearToDraw   &&
-					   Mon == MonthToDraw  &&
-					   Mon == CurrentMonth &&
-					   Day == CurrentDay);
-
-			/* Check if day has an exam announcement */
-			ThisDayHasEvent = false;
-			if (!DrawingCalendar || Mon == MonthToDraw) // If drawing calendar and the month is not the real one, don't draw exam announcements
-				for (NumExamAnnouncement = 0;
-					NumExamAnnouncement < LstExamAnnouncements.length;
-					NumExamAnnouncement++)
-					if (Yea == LstExamAnnouncements[NumExamAnnouncement].Year  &&
-						Mon == LstExamAnnouncements[NumExamAnnouncement].Month &&
-						Day == LstExamAnnouncements[NumExamAnnouncement].Day) {
-						ThisDayHasEvent = true;
-						if (!PrintView) {
-							ExaCod = LstExamAnnouncements[NumExamAnnouncement].ExaCod;
-							StrMon = ((Mon < 10) ? '0' : '') + Mon;
-							StrDay = ((Day < 10) ? '0' : '') + Day;
-							StrDate = Yea + StrMon + StrDay;	// YYYYMMDD
-							TextForDay = STR_EXAM;
-						}
-						break;	// Only last exam in the day (list is ordered from more recent to older)
-					}
-
-			/***** Write the box with the day *****/
-			Gbl_HTMLContent += '<td class="' +
-							   ((IsToday && !PrintView) ? (ThisDayHasEvent ? 'TODAY_EVENT' :
-																			 'TODAY') :
-														  (ThisDayHasEvent ? 'DAY_EVENT' :
-																			 'DAY')) +
-							   '">';
-
-			/* If day has an exam announcement */
-			if (!PrintView && ThisDayHasEvent) {
-				FormIdNum++;
-				FormId = id + '_event_' + FormIdNum;
-				Gbl_HTMLContent +=	'<form method="post" action="' +
-									CGI + '#' + 'cod_' +
-									ExaCod +
-									'" id="' + FormId + '">' +
-									FormEventParams +
-									'<input type="hidden" name=\"Date\" value="' +
-									StrDate +
-									'" /><div class="' + ClassForDay + '"';
-				if (TextForDay.length)
-					Gbl_HTMLContent += ' title="' + TextForDay + '"';
-				Gbl_HTMLContent +=	'><a href="" class="' + ClassForDay +
-									'" onclick="document.getElementById(\'' + FormId +
-									'\').submit();return false;">';
-			} else {
-				Gbl_HTMLContent += '<div class="' + ClassForDay + '"';
-				if (TextForDay.length)
-					Gbl_HTMLContent += ' title="' + TextForDay + '"';
-				Gbl_HTMLContent += '>';
-			}
-
-			/* Write the day of month */
-			Gbl_HTMLContent += Day;
-
-			/* If day has an exam announcement */
-			if (!PrintView && ThisDayHasEvent)
-				Gbl_HTMLContent += '</a></div></form>';
-			else
-				Gbl_HTMLContent += '</div>';
-
-			Gbl_HTMLContent += '</td>';
-
-			/***** Set the next day *****/
-			NumDaysInMonth = daysInMonth (Mon,Yea);
-			if (++Day > NumDaysInMonth) {
-				if (++Mon > 12) {
-					Yea++;
-					Mon = 1;
-				}
-				Day = 1;
-			}
-		}
-		Gbl_HTMLContent += '</tr>';
-	}
-
-	/***** End of month *****/
-	Gbl_HTMLContent += '</table></div>';
-}
-
-/*****************************************************************************/
-/** Compute day of the week from a given date (first day of a week: monday) **/
-/*****************************************************************************/
-// Return 0 for monday, 1 for tuesday,... 6 for sunday
-
-function GetDayOfWeekMondayFirst (Year,Month,Day) {
-	if (Month <= 2) {
-		Month += 12;
-		Year--;
-	}
-	return (((Day +
-			(Month * 2) +
-			Math.floor (((Month + 1) * 3) / 5) +
-			Year +
-			Math.floor (Year / 4) -
-			Math.floor (Year/100) +
-			Math.floor (Year/400) +
-			2) % 7) + 5) % 7;
-}
-
-/*****************************************************************************/
-/************* Copy message subject and content to hidden fields *************/
-/*****************************************************************************/
-
-function CopyMessageToHiddenFields () {
-	var Subject = document.getElementById('MsgSubject');
-	var Content = document.getElementById('MsgContent');
-	var Subjects = document.getElementsByName("HiddenSubject");
-	var Contents = document.getElementsByName("HiddenContent");
-	var i;
-
-	if (Subject)
-		for (i = 0; i < Subjects.length; i++)
-			if (Subjects[i].type == "hidden")
-				Subjects[i].value = Subject.value;
-
-	if (Content)
-		for (i = 0; i < Contents.length; i++)
-			if (Contents[i].type == "hidden")
-				Contents[i].value = Content.value;
-}
-
-/*****************************************************************************/
-/**************** Animate icon "recycle" when click on a link ****************/
-/*****************************************************************************/
-
-function AnimateIcon (NumForm) {
-	document.getElementById('update_'+NumForm).style.display='none';	// Icon to be hidden on click
-	document.getElementById('updating_'+NumForm).style.display='';		// Icon to be shown on click
-}
-
-/*****************************************************************************/
-/************************ Expand / contract a folder *************************/
-/*****************************************************************************/
-/*
-Example of rows:
-	idParent	= 'file_browser_1_1_2_1'
-Children ids:
-	idRow		= 'file_browser_1_1_2_1_1'
-	idRow		= 'file_browser_1_1_2_1_2'
-	idRow		= 'file_browser_1_1_2_1_2_1'
-*/
-function ExpandFolder (idParent) {
-	var parent				= document.getElementById(idParent);
-	var iconToExpand		= document.getElementById('expand_'			+ idParent);
-	var iconToContract		= document.getElementById('contract_'		+ idParent);
-	var iconFolderClosed	= document.getElementById('folder_closed_'	+ idParent);
-	var iconFolderOpen		= document.getElementById('folder_open_'	+ idParent);
-
-	if (parent.dataset.folder == 'contracted') {
-		ExpandChildren (idParent);
-		parent.dataset.folder = 'expanded';
-		iconToExpand.style.display		= 'none';
-		iconToContract.style.display	= '';
-		iconFolderClosed.style.display	= 'none';
-		iconFolderOpen.style.display	= '';
-	}
-}
-
-function ExpandChildren (idParent) {
-	var parent = document.getElementById(idParent);
-	var rows = document.getElementsByTagName('tr');
-	var lengthIdParent = idParent.length;
-	var i;
-	var row;
-	var idRow;
-	var filename;
-
-	for (i = 0; i < rows.length; i++) {
-		row = rows[i];
-		if (row != parent) {
-			idRow = row.id;
-			if (idRow.indexOf(idParent) == 0) {				// row.id starts by idParent, so it's a child
-				/* Get filename */
-				filename = idRow.substring(lengthIdParent + 1);
-
-				if (filename.indexOf("_") < 0) {			// this child hangs directly from parent
-					/* Unhide row */
-					row.style.display = '';					// unhide
-
-					/* Expand children */
-					if (row.dataset.folder == 'expanded')	// this child is an expanded folder
-						ExpandChildren (idRow);				// recursive call
-				}
-			}
-		}
-	}
-}
-
-function ContractFolder (idParent) {
-	var parent				= document.getElementById(idParent);
-	var iconToExpand		= document.getElementById('expand_'			+ idParent);
-	var iconToContract		= document.getElementById('contract_'		+ idParent);
-	var iconFolderClosed	= document.getElementById('folder_closed_'	+ idParent);
-	var iconFolderOpen		= document.getElementById('folder_open_'	+ idParent);
-
-	if (parent.dataset.folder == 'expanded') {
-		ContractChildren (idParent);
-		parent.dataset.folder = 'contracted';
-		iconToContract.style.display	= 'none';
-		iconToExpand.style.display		= '';
-		iconFolderOpen.style.display	= 'none';
-		iconFolderClosed.style.display	= '';
-	}
-}
-
-function ContractChildren (idParent) {
-	var parent = document.getElementById(idParent);
-	var rows = document.getElementsByTagName('tr');
-	var i;
-	var row;
-
-	for (i = 0; i < rows.length; i++) {
-		row = rows[i];
-		if (row != parent)
-			if (row.id.indexOf(idParent) == 0)		// row.id starts by idParent, so it's a child
-				/* Unhide row */
-				row.style.display = 'none';			// hide
-	}
-}
diff --git a/swad_changelog.h b/swad_changelog.h
index 82008556..15ef9d90 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -548,10 +548,11 @@ enscript -2 --landscape --color --file-align=2 --highlight --line-numbers -o - *
 En OpenSWAD:
 ps2pdf source.ps destination.pdf
 */
-#define Log_PLATFORM_VERSION	"SWAD 19.222.2 (2020-05-10)"
+#define Log_PLATFORM_VERSION	"SWAD 19.223 (2020-05-11)"
 #define CSS_FILE		"swad19.217.css"
-#define JS_FILE			"swad19.193.1.js"
+#define JS_FILE			"swad19.223.js"
 /*
+	Version 19.223:   May 11, 2020  Store exam answer and refresh exam print. (303024 lines)
 	Version 19.222.2: May 10, 2020  Fixed bugs in exams. (302852 lines)
 	Version 19.222.1: May 10, 2020  Code refactoring in exam prints. (302794 lines)
 	Version 19.222:   May 10, 2020  Changes in exam prints. (302787 lines)
diff --git a/swad_exam_event.c b/swad_exam_event.c
index 8804f5d0..e441a624 100644
--- a/swad_exam_event.c
+++ b/swad_exam_event.c
@@ -3224,7 +3224,7 @@ static void ExaEvt_PutIfAnswered (const struct ExaEvt_Event *Event,bool Answered
        Event->Status.Showing == ExaEvt_ANSWERS &&	// Teacher's screen is showing question answers
        Answered)				// I have answered this question
      {
-      /* Start form */
+      /* Begin form */
       Frm_StartForm (ActSeeExaEvtAnsQstStd);
       ExaEvt_PutParamEvtCod (Event->EvtCod);	// Current exam event being played
 
@@ -3265,7 +3265,7 @@ static void ExaEvt_PutIconToRemoveMyAnswer (const struct ExaEvt_Event *Event)
    /***** Start container *****/
    HTM_DIV_Begin ("class=\"EXA_REM_MY_ANS\"");
 
-   /***** Start form *****/
+   /***** Begin form *****/
    Frm_StartForm (ActRemExaEvtAnsQstStd);
    ExaEvt_PutParamEvtCod (Event->EvtCod);	// Current exam event being played
    Exa_PutParamQstInd (Event->Status.QstInd);	// Current question index shown
diff --git a/swad_exam_print.c b/swad_exam_print.c
index d9da8008..ec953029 100644
--- a/swad_exam_print.c
+++ b/swad_exam_print.c
@@ -94,10 +94,6 @@ static unsigned ExaPrn_GetSomeQstsFromSetToPrint (struct ExaPrn_Print *Print,
                                                   struct ExaSet_Set *Set,
                                                   unsigned *NumQstInPrint);
 static void ExaPrn_CreatePrintInDB (struct ExaPrn_Print *Print);
-static void ExaPrn_ComputeScoresAndStoreQuestionsOfPrint (struct ExaPrn_Print *Print,
-                                                          bool UpdateQstScore);
-static void ExaPrn_StoreOneQstOfPrintInDB (const struct ExaPrn_Print *Print,
-                                           unsigned NumQst);
 
 static void ExaPrn_GetPrintQuestionsFromDB (struct ExaPrn_Print *Print);
 
@@ -122,7 +118,20 @@ static void ExaPrn_WriteChoiceAnsSeeing (const struct ExaPrn_Print *Print,
 static void ExaPrn_WriteTextAnsSeeing (const struct ExaPrn_Print *Print,
 	                               unsigned NumQst);
 
-static void ExaPrn_PutParamPrnCod (long ExaCod);
+static unsigned ExaPrn_GetAnswerFromForm (struct ExaPrn_Print *Print);
+
+// static void ExaPrn_PutParamNumQst (unsigned NumQst);
+static unsigned ExaPrn_GetParamQstInd (void);
+
+static void ExaPrn_ComputeScoresAndStoreQuestionsOfPrint (struct ExaPrn_Print *Print,
+                                                          bool UpdateQstScore);
+static void ExaPrn_ComputeScoreAndStoreQuestionOfPrint (struct ExaPrn_Print *Print,
+                                                        unsigned NumQst);
+static void ExaPrn_StoreOneQstOfPrintInDB (const struct ExaPrn_Print *Print,
+                                           unsigned NumQst);
+static void ExaPrn_UpdatePrintInDB (const struct ExaPrn_Print *Print);
+
+// static void ExaPrn_PutParamPrnCod (long ExaCod);
 // static long ExaPrn_GetParamPrnCod (void);
 
 /*****************************************************************************/
@@ -172,7 +181,6 @@ void ExaPrn_ShowExamPrint (void)
    Print.EvtCod = Event.EvtCod;
    Print.UsrCod = Gbl.Usrs.Me.UsrDat.UsrCod;
    ExaPrn_GetPrintDataByEvtCodAndUsrCod (&Print);
-   Print.ExaCod = Event.ExaCod;
 
    if (Print.PrnCod > 0)	// Print exists
      {
@@ -186,6 +194,8 @@ void ExaPrn_ShowExamPrint (void)
       Ale_ShowAlert (Ale_INFO,"Examen nuevo.");
 
       /***** Get questions from database *****/
+      // Print doesn't exists ==> exam code is -1 ==> so initialize it
+      Print.ExaCod = Exam.ExaCod;
       ExaPrn_GetQuestionsForNewPrintFromDB (&Print);
 
       if (Print.NumQsts)
@@ -212,40 +222,51 @@ static void ExaPrn_GetPrintDataByEvtCodAndUsrCod (struct ExaPrn_Print *Print)
 
    /***** Make database query *****/
    if (DB_QuerySELECT (&mysql_res,"can not get data of an exam print",
-		       "SELECT PrnCod,"				// row[0]
-			      "UNIX_TIMESTAMP(StartTime),"	// row[1]
-			      "UNIX_TIMESTAMP(EndTime),"	// row[2]
-		              "NumQsts,"			// row[3]
-		              "NumQstsNotBlank,"		// row[4]
-			      "Sent,"				// row[5]
-		              "Score"				// row[6]
-		       " FROM exa_prints"
-	               " WHERE EvtCod=%ld AND UsrCod=%ld",
-		       Print->EvtCod,Print->UsrCod) == 1)
+		       "SELECT exa_prints.PrnCod,"			// row[0]
+                              "exa_exams.ExaCod,"			// row[1]
+			      "UNIX_TIMESTAMP(exa_prints.StartTime),"	// row[2]
+			      "UNIX_TIMESTAMP(exa_prints.EndTime),"	// row[3]
+		              "exa_prints.NumQsts,"			// row[4]
+		              "exa_prints.NumQstsNotBlank,"		// row[5]
+			      "exa_prints.Sent,"			// row[6]
+		              "exa_prints.Score"			// row[7]
+		       " FROM exa_prints,exa_events,exa_exams"
+	               " WHERE exa_prints.EvtCod=%ld"
+                       " AND exa_prints.UsrCod=%ld"			// Extra check: it belong to user
+                       " AND exa_prints.EvtCod=exa_events.EvtCod"
+		       " AND (NOW() BETWEEN exa_events.StartTime AND exa_events.EndTime)"	// Extra check: event is open
+                       " AND exa_events.ExaCod=exa_exams.ExaCod"
+                       " AND exa_exams.CrsCod=%ld",			// Extra check: it belong to current course
+		       Print->EvtCod,
+		       Print->UsrCod,
+		       Gbl.Hierarchy.Crs.CrsCod) == 1)
      {
       row = mysql_fetch_row (mysql_res);
 
       /* Get print code (row[0]) */
       Print->PrnCod = Str_ConvertStrCodToLongCod (row[0]);
 
-      /* Get date-time (row[1] and row[2] hold UTC date-time) */
-      Print->TimeUTC[Dat_START_TIME] = Dat_GetUNIXTimeFromStr (row[1]);
-      Print->TimeUTC[Dat_END_TIME  ] = Dat_GetUNIXTimeFromStr (row[2]);
+       /* Get exam code (row[1]) */
+      Print->ExaCod = Str_ConvertStrCodToLongCod (row[1]);
 
-      /* Get number of questions (row[3]) */
-      if (sscanf (row[3],"%u",&Print->NumQsts) != 1)
+      /* Get date-time (row[2] and row[3] hold UTC date-time) */
+      Print->TimeUTC[Dat_START_TIME] = Dat_GetUNIXTimeFromStr (row[2]);
+      Print->TimeUTC[Dat_END_TIME  ] = Dat_GetUNIXTimeFromStr (row[3]);
+
+      /* Get number of questions (row[4]) */
+      if (sscanf (row[4],"%u",&Print->NumQsts) != 1)
 	 Print->NumQsts = 0;
 
-      /* Get number of questions not blank (row[4]) */
-      if (sscanf (row[4],"%u",&Print->NumQstsNotBlank) != 1)
+      /* Get number of questions not blank (row[5]) */
+      if (sscanf (row[5],"%u",&Print->NumQstsNotBlank) != 1)
 	 Print->NumQstsNotBlank = 0;
 
-      /* Get if exam has been sent (row[5]) */
-      Print->Sent = (row[5][0] == 'Y');
+      /* Get if exam has been sent (row[6]) */
+      Print->Sent = (row[6][0] == 'Y');
 
-      /* Get score (row[6]) */
+      /* Get score (row[7]) */
       Str_SetDecimalPointToUS ();	// To get the decimal point as a dot
-      if (sscanf (row[6],"%lf",&Print->Score) != 1)
+      if (sscanf (row[7],"%lf",&Print->Score) != 1)
 	 Print->Score = 0.0;
       Str_SetDecimalPointToLocal ();	// Return to local system
      }
@@ -427,79 +448,6 @@ static void ExaPrn_CreatePrintInDB (struct ExaPrn_Print *Print)
 				Print->NumQsts);
   }
 
-/*****************************************************************************/
-/*********** Compute score of each question and store in database ************/
-/*****************************************************************************/
-
-static void ExaPrn_ComputeScoresAndStoreQuestionsOfPrint (struct ExaPrn_Print *Print,
-                                                          bool UpdateQstScore)
-  {
-   unsigned NumQst;
-   struct Tst_Question Question;
-
-   /***** Initialize total score *****/
-   Print->Score = 0.0;
-   Print->NumQstsNotBlank = 0;
-
-   /***** Compute and store scores of all questions *****/
-   for (NumQst = 0;
-	NumQst < Print->NumQsts;
-	NumQst++)
-     {
-      /* Compute question score */
-      Tst_QstConstructor (&Question);
-      Question.QstCod = Print->PrintedQuestions[NumQst].QstCod;
-      Question.Answer.Type = Tst_GetQstAnswerType (Question.QstCod);
-      TstPrn_ComputeAnswerScore (&Print->PrintedQuestions[NumQst],&Question);
-      Tst_QstDestructor (&Question);
-
-      /* Store test exam question in database */
-      ExaPrn_StoreOneQstOfPrintInDB (Print,
-				     NumQst);	// 0, 1, 2, 3...
-
-      /* Accumulate total score */
-      Print->Score += Print->PrintedQuestions[NumQst].Score;
-      if (Print->PrintedQuestions[NumQst].AnswerIsNotBlank)
-	 Print->NumQstsNotBlank++;
-
-      /* Update the number of hits and the score of this question in tests database */
-      if (UpdateQstScore)
-	 Tst_UpdateQstScoreInDB (&Print->PrintedQuestions[NumQst]);
-     }
-  }
-
-
-/*****************************************************************************/
-/************* Store user's answers of an test exam into database ************/
-/*****************************************************************************/
-
-static void ExaPrn_StoreOneQstOfPrintInDB (const struct ExaPrn_Print *Print,
-                                           unsigned NumQst)
-  {
-   char StrIndexes[Tst_MAX_BYTES_INDEXES_ONE_QST + 1];
-   char StrAnswers[Tst_MAX_BYTES_ANSWERS_ONE_QST + 1];
-
-   /***** Replace each separator of multiple parameters by a comma *****/
-   /* In database commas are used as separators instead of special chars */
-   Par_ReplaceSeparatorMultipleByComma (Print->PrintedQuestions[NumQst].StrIndexes,StrIndexes);
-   Par_ReplaceSeparatorMultipleByComma (Print->PrintedQuestions[NumQst].StrAnswers,StrAnswers);
-
-   /***** Insert question and user's answers into database *****/
-   Str_SetDecimalPointToUS ();	// To print the floating point as a dot
-   DB_QueryREPLACE ("can not update a question in an exam print",
-		    "REPLACE INTO exa_print_questions"
-		    " (PrnCod,QstCod,QstInd,SetCod,Score,Indexes,Answers)"
-		    " VALUES"
-		    " (%ld,%ld,%u,%ld,'%.15lg','%s','%s')",
-		    Print->PrnCod,Print->PrintedQuestions[NumQst].QstCod,
-		    NumQst,	// 0, 1, 2, 3...
-		    Print->PrintedQuestions[NumQst].SetCod,
-		    Print->PrintedQuestions[NumQst].Score,
-		    StrIndexes,
-		    StrAnswers);
-   Str_SetDecimalPointToLocal ();	// Return to local system
-  }
-
 /*****************************************************************************/
 /************* Get the questions of an exam print from database **************/
 /*****************************************************************************/
@@ -592,14 +540,16 @@ static void ExaPrn_ShowExamPrintToFillIt (const char *Title,
 
    if (Print->NumQsts)
      {
-      /***** Begin form *****/
-      Frm_StartForm (ActEndExaPrn);
-      ExaPrn_PutParamPrnCod (Print->PrnCod);
-
       /***** Show table with questions to answer *****/
+      Frm_StartFormNoAction ();	// Form that can not be submitted, to avoid enter key to send it
+      HTM_DIV_Begin ("id=\"examprint\"");	// Used for AJAX based refresh
       ExaPrn_ShowTableWithQstsToFill (Print);
+      HTM_DIV_End ();				// Used for AJAX based refresh
+      Frm_EndForm ();
 
-      /***** Send button and end form *****/
+      /***** Form to end/close this exam print *****/
+      Frm_StartForm (ActEndExaPrn);
+      // ExaEvt_PutParamEvtCod (Print->EvtCod);
       Btn_PutCreateButton ("He terminado");	// TODO: Translate!!!
       Frm_EndForm ();
      }
@@ -668,6 +618,7 @@ static void ExaPrn_WriteQstAndAnsToFill (struct ExaPrn_Print *Print,
       /***** Get data of this set *****/
       CurrentSet.ExaCod = Print->ExaCod;
       CurrentSet.SetCod = Print->PrintedQuestions[NumQst].SetCod;
+
       ExaSet_GetDataOfSetByCod (&CurrentSet);
 
       /***** Title for this set *****/
@@ -749,15 +700,24 @@ static void ExaPrn_WriteAnswersToFill (const struct ExaPrn_Print *Print,
 static void ExaPrn_WriteIntAnsSeeing (const struct ExaPrn_Print *Print,
 				      unsigned NumQst)
   {
-   char StrAns[3 + Cns_MAX_DECIMAL_DIGITS_UINT + 1];	// "Ansxx...x"
+   char Id[3 + Cns_MAX_DECIMAL_DIGITS_UINT + 1];	// "Ansxx...x"
 
    /***** Write input field for the answer *****/
-   snprintf (StrAns,sizeof (StrAns),
+   snprintf (Id,sizeof (Id),
 	     "Ans%010u",
 	     NumQst);
-   HTM_INPUT_TEXT (StrAns,11,Print->PrintedQuestions[NumQst].StrAnswers,
-                   HTM_SUBMIT_ON_CHANGE,
-		   "size=\"11\"");
+   HTM_TxtF ("<input type=\"text\" id=\"%s\" name=\"%s\""
+	     " size=\"11\" maxlength=\"11\" value=\"%s\"",
+	     Id,Id,
+	     Print->PrintedQuestions[NumQst].StrAnswers);
+   HTM_TxtF (" onchange=\"updateExamPrint('examprint','%s','%s',"
+			 "'act=%ld&ses=%s&EvtCod=%ld&NumQst=%u');"
+		         " return false;\"",	// return false is necessary to not submit form
+	     Id,Id,
+	     Act_GetActCod (ActAnsExaPrn),
+	     Gbl.Session.Id,Print->EvtCod,NumQst);
+
+   HTM_Txt (" />");
   }
 
 /*****************************************************************************/
@@ -904,7 +864,207 @@ static void ExaPrn_WriteTextAnsSeeing (const struct ExaPrn_Print *Print,
 
 void ExaPrn_ReceivePrintAnswer (void)
   {
-   Ale_ShowAlert (Ale_INFO,"Recepci&oacute;n del examen contestado.");
+   // struct Exa_Exams Exams;
+   // struct Exa_Exam Exam;
+   // struct ExaEvt_Event Event;
+   struct ExaPrn_Print Print;
+   unsigned NumQst;
+
+   /***** Reset exams context *****/
+   // Exa_ResetExams (&Exams);
+   // Exa_ResetExam (&Exam);
+   // ExaEvt_ResetEvent (&Event);
+   ExaPrn_ResetPrint (&Print);
+
+   /***** Get and check parameters *****/
+   Print.EvtCod = ExaEvt_GetParamEvtCod ();
+   Print.UsrCod = Gbl.Usrs.Me.UsrDat.UsrCod;
+   ExaPrn_GetPrintDataByEvtCodAndUsrCod (&Print);
+   if (Print.PrnCod <= 0)
+      Lay_ShowErrorAndExit ("Wrong exam print.");
+
+   /***** Get exam data and event from database *****/
+   /*
+   Exam.ExaCod = Print.ExaCod;
+   Exa_GetDataOfExamByCod (Exam);
+   Exams->ExaCod = Exam.ExaCod;
+
+   Event.EvtCod = Print.EvtCod;
+   ExaEvt_GetDataOfEventByCod (Event);
+   Exams->EvtCod = Event.ExaCod;
+   */
+
+   /***** Get questions and answers from database *****/
+   ExaPrn_GetPrintQuestionsFromDB (&Print);
+
+   /***** Get answers from form to assess a test *****/
+   NumQst = ExaPrn_GetAnswerFromForm (&Print);
+
+   /***** Update answer in database *****/
+   /* Compute question score and store in database */
+   ExaPrn_ComputeScoreAndStoreQuestionOfPrint (&Print,NumQst);
+
+   /* Update exam print in database */
+   ExaPrn_UpdatePrintInDB (&Print);
+
+   /***** Show table with questions to answer *****/
+   ExaPrn_ShowTableWithQstsToFill (&Print);
+  }
+
+/*****************************************************************************/
+/******** Get questions and answers from form to assess an exam print ********/
+/*****************************************************************************/
+
+static unsigned ExaPrn_GetAnswerFromForm (struct ExaPrn_Print *Print)
+  {
+   unsigned NumQst;
+   char AnsName[3 + Cns_MAX_DECIMAL_DIGITS_UINT + 1];	// "Ansxx...x"
+
+   /***** Get question index from form *****/
+   NumQst = ExaPrn_GetParamQstInd ();
+
+   /***** Get answers selected by user for this question *****/
+   snprintf (AnsName,sizeof (AnsName),
+	     "Ans%010u",
+	     NumQst);
+   Par_GetParMultiToText (AnsName,Print->PrintedQuestions[NumQst].StrAnswers,
+			  Tst_MAX_BYTES_ANSWERS_ONE_QST);  /* If answer type == T/F ==> " ", "T", "F"; if choice ==> "0", "2",... */
+
+   return NumQst;
+  }
+
+/*****************************************************************************/
+/****************** Write parameter with index of question *******************/
+/*****************************************************************************/
+/*
+static void ExaPrn_PutParamNumQst (unsigned NumQst)
+  {
+   Par_PutHiddenParamUnsigned (NULL,"NumQst",NumQst);
+  }
+*/
+/*****************************************************************************/
+/******************* Get parameter with index of question ********************/
+/*****************************************************************************/
+
+static unsigned ExaPrn_GetParamQstInd (void)
+  {
+   long NumQst;
+
+   NumQst = Par_GetParToLong ("NumQst");
+   if (NumQst < 0)
+      Lay_ShowErrorAndExit ("Wrong number of question.");
+
+   return (unsigned) NumQst;
+  }
+
+/*****************************************************************************/
+/*********** Compute score of each question and store in database ************/
+/*****************************************************************************/
+
+static void ExaPrn_ComputeScoresAndStoreQuestionsOfPrint (struct ExaPrn_Print *Print,
+                                                          bool UpdateQstScore)
+  {
+   unsigned NumQst;
+
+   /***** Initialize total score *****/
+   Print->Score = 0.0;
+   Print->NumQstsNotBlank = 0;
+
+   /***** Compute and store scores of all questions *****/
+   for (NumQst = 0;
+	NumQst < Print->NumQsts;
+	NumQst++)
+     {
+      /* Compute question score and store in database */
+      ExaPrn_ComputeScoreAndStoreQuestionOfPrint (Print,NumQst);
+
+      /* Accumulate total score */
+      Print->Score += Print->PrintedQuestions[NumQst].Score;
+      if (Print->PrintedQuestions[NumQst].AnswerIsNotBlank)
+	 Print->NumQstsNotBlank++;
+
+      /* Update the number of hits and the score of this question in tests database */
+      if (UpdateQstScore)
+	 Tst_UpdateQstScoreInDB (&Print->PrintedQuestions[NumQst]);
+     }
+  }
+
+/*****************************************************************************/
+/*********** Compute score of one question and store in database *************/
+/*****************************************************************************/
+
+static void ExaPrn_ComputeScoreAndStoreQuestionOfPrint (struct ExaPrn_Print *Print,
+                                                        unsigned NumQst)
+  {
+   struct Tst_Question Question;
+
+   /***** Compute question score *****/
+   Tst_QstConstructor (&Question);
+   Question.QstCod = Print->PrintedQuestions[NumQst].QstCod;
+   Question.Answer.Type = Tst_GetQstAnswerType (Question.QstCod);
+   TstPrn_ComputeAnswerScore (&Print->PrintedQuestions[NumQst],&Question);
+   Tst_QstDestructor (&Question);
+
+   /***** Store test exam question in database *****/
+   ExaPrn_StoreOneQstOfPrintInDB (Print,
+				  NumQst);	// 0, 1, 2, 3...
+  }
+
+/*****************************************************************************/
+/************* Store user's answers of an test exam into database ************/
+/*****************************************************************************/
+
+static void ExaPrn_StoreOneQstOfPrintInDB (const struct ExaPrn_Print *Print,
+                                           unsigned NumQst)
+  {
+   char StrIndexes[Tst_MAX_BYTES_INDEXES_ONE_QST + 1];
+   char StrAnswers[Tst_MAX_BYTES_ANSWERS_ONE_QST + 1];
+
+   /***** Replace each separator of multiple parameters by a comma *****/
+   /* In database commas are used as separators instead of special chars */
+   Par_ReplaceSeparatorMultipleByComma (Print->PrintedQuestions[NumQst].StrIndexes,StrIndexes);
+   Par_ReplaceSeparatorMultipleByComma (Print->PrintedQuestions[NumQst].StrAnswers,StrAnswers);
+
+   /***** Insert question and user's answers into database *****/
+   Str_SetDecimalPointToUS ();	// To print the floating point as a dot
+   DB_QueryREPLACE ("can not update a question in an exam print",
+		    "REPLACE INTO exa_print_questions"
+		    " (PrnCod,QstCod,QstInd,SetCod,Score,Indexes,Answers)"
+		    " VALUES"
+		    " (%ld,%ld,%u,%ld,'%.15lg','%s','%s')",
+		    Print->PrnCod,Print->PrintedQuestions[NumQst].QstCod,
+		    NumQst,	// 0, 1, 2, 3...
+		    Print->PrintedQuestions[NumQst].SetCod,
+		    Print->PrintedQuestions[NumQst].Score,
+		    StrIndexes,
+		    StrAnswers);
+   Str_SetDecimalPointToLocal ();	// Return to local system
+  }
+
+/*****************************************************************************/
+/********************** Update exam print in database ************************/
+/*****************************************************************************/
+
+static void ExaPrn_UpdatePrintInDB (const struct ExaPrn_Print *Print)
+  {
+   /***** Update exam print in database *****/
+   Str_SetDecimalPointToUS ();		// To print the floating point as a dot
+   DB_QueryUPDATE ("can not update exam print",
+		   "UPDATE exa_prints"
+	           " SET EndTime=NOW(),"
+	                "NumQstsNotBlank=%u,"
+		        "Sent='%c',"
+	                "Score='%.15lg'"
+	           " WHERE PrnCod=%ld"
+	           " AND EvtCod=%ld AND UsrCod=%ld",	// Extra checks
+		   Print->NumQstsNotBlank,
+		   Print->Sent ? 'Y' :
+			         'N',
+		   Print->Score,
+		   Print->PrnCod,
+		   Print->EvtCod,
+		   Gbl.Usrs.Me.UsrDat.UsrCod);
+   Str_SetDecimalPointToLocal ();	// Return to local system
   }
 
 /*****************************************************************************/
@@ -920,10 +1080,10 @@ void ExaPrn_EndPrintAnswer (void)
 /***************** Write parameter with code of exam print *******************/
 /*****************************************************************************/
 
-static void ExaPrn_PutParamPrnCod (long ExaCod)
-  {
-   Par_PutHiddenParamLong (NULL,"PrnCod",ExaCod);
-  }
+// static void ExaPrn_PutParamPrnCod (long ExaCod)
+//   {
+//    Par_PutHiddenParamLong (NULL,"PrnCod",ExaCod);
+//   }
 
 /*****************************************************************************/
 /***************** Get parameter with code of exam print *********************/
diff --git a/swad_exam_result.c b/swad_exam_result.c
index c8b00a95..2a9e15a6 100644
--- a/swad_exam_result.c
+++ b/swad_exam_result.c
@@ -1122,7 +1122,7 @@ void ExaRes_ShowOneExaResult (void)
      }
 
    /***** Get event result data *****/
-   TstPrn_ResetResult (&Print);
+   TstPrn_ResetPrint (&Print);
    ExaRes_GetEventResultDataByEvtCod (Event.EvtCod,UsrDat->UsrCod,&Print);
 
    /***** Check if I can view this event result *****/
diff --git a/swad_form.c b/swad_form.c
index 172f4af3..63677a07 100644
--- a/swad_form.c
+++ b/swad_form.c
@@ -157,6 +157,18 @@ static void Frm_StartFormInternal (Act_Action_t NextAction,bool PutParameterLoca
      }
   }
 
+void Frm_StartFormNoAction (void)
+  {
+   if (!Gbl.Form.Inside)
+     {
+      /* Begin form */
+      HTM_Txt ("<form accept-charset=\"windows-1252\""
+	       " onsubmit=\"return false;\">");	// Form that can not be submitted, to avoid enter key to send it
+
+      Gbl.Form.Inside = true;
+     }
+  }
+
 void Frm_SetParamsForm (char ParamsStr[Frm_MAX_BYTES_PARAMS_STR + 1],Act_Action_t NextAction,
                         bool PutParameterLocationIfNoSesion)
   {
diff --git a/swad_form.h b/swad_form.h
index 41b7d701..b738cbd7 100644
--- a/swad_form.h
+++ b/swad_form.h
@@ -59,6 +59,7 @@ void Frm_StartFormAnchor (Act_Action_t NextAction,const char *Anchor);
 void Frm_StartFormUniqueAnchor (Act_Action_t NextAction,const char *Anchor);
 void Frm_StartFormUniqueAnchorOnSubmit (Act_Action_t NextAction,const char *Anchor,const char *OnSubmit);
 void Frm_StartFormId (Act_Action_t NextAction,const char *Id);
+void Frm_StartFormNoAction (void);
 void Frm_SetParamsForm (char ParamsStr[Frm_MAX_BYTES_PARAMS_STR],Act_Action_t NextAction,
                         bool PutParameterLocationIfNoSesion);
 void Frm_EndForm (void);
diff --git a/swad_match.c b/swad_match.c
index 99d243ba..e418c286 100644
--- a/swad_match.c
+++ b/swad_match.c
@@ -2524,7 +2524,7 @@ static void Mch_PutFormCountdown (struct Mch_Match *Match,long Seconds,const cha
 
    if (PutForm)
      {
-      /***** Start form *****/
+      /***** Begin form *****/
       if (asprintf (&OnSubmit,"updateMatchTch('match_left',"
 			      "'act=%ld&ses=%s&MchCod=%ld&Countdown=%ld');"
 			      " return false;",	// return false is necessary to not submit form
@@ -2532,7 +2532,6 @@ static void Mch_PutFormCountdown (struct Mch_Match *Match,long Seconds,const cha
 		    Match->MchCod,Seconds) < 0)
 	 Lay_NotEnoughMemoryExit ();
       Frm_StartFormOnSubmit (ActUnk,OnSubmit);
-
      }
 
    /***** Put icon *****/
@@ -2884,7 +2883,7 @@ static void Mch_PutIfAnswered (const struct Mch_Match *Match,bool Answered)
        Match->Status.Showing == Mch_ANSWERS &&	// Teacher's screen is showing question answers
        Answered)				// I have answered this question
      {
-      /* Start form */
+      /* Begin form */
       Frm_StartForm (ActSeeMchAnsQstStd);
       Mch_PutParamMchCod (Match->MchCod);	// Current match being played
 
@@ -2922,10 +2921,10 @@ static void Mch_PutIconToRemoveMyAnswer (const struct Mch_Match *Match)
   {
    extern const char *Txt_Delete_my_answer;
 
-   /***** Start container *****/
+   /***** Begin container *****/
    HTM_DIV_Begin ("class=\"MCH_REM_MY_ANS\"");
 
-   /***** Start form *****/
+   /***** Begin form *****/
    Frm_StartForm (ActRemMchAnsQstStd);
    Mch_PutParamMchCod (Match->MchCod);		// Current match being played
    Gam_PutParamQstInd (Match->Status.QstInd);	// Current question index shown
diff --git a/swad_match_result.c b/swad_match_result.c
index 02f180d2..80a8cf96 100644
--- a/swad_match_result.c
+++ b/swad_match_result.c
@@ -1113,7 +1113,7 @@ void MchRes_ShowOneMchResult (void)
      }
 
    /***** Get match result data *****/
-   TstPrn_ResetResult (&Print);
+   TstPrn_ResetPrint (&Print);
    MchRes_GetMatchResultDataByMchCod (Match.MchCod,UsrDat->UsrCod,&Print);
 
    /***** Check if I can view this match result *****/
diff --git a/swad_test.c b/swad_test.c
index 1b54017d..9ac82a4b 100644
--- a/swad_test.c
+++ b/swad_test.c
@@ -132,7 +132,7 @@ static void Tst_ShowFormRequestTest (struct Tst_Test *Test);
 
 static void Tst_PutCheckBoxAllowTeachers (bool AllowTeachers);
 
-static void Tst_GetAnswersFromForm (struct TstPrn_Print *Print);
+static void TstPrn_GetAnswersFromForm (struct TstPrn_Print *Print);
 
 static bool Tst_CheckIfNextTstAllowed (void);
 static unsigned Tst_GetNumExamsGeneratedByMe (void);
@@ -455,7 +455,7 @@ void Tst_ShowNewTest (void)
       if (Tst_GetParamsTst (&Test,Tst_SHOW_TEST_TO_ANSWER))	// Get parameters from form
         {
          /***** Get questions *****/
-	 TstPrn_ResetResult (&Print);
+	 TstPrn_ResetPrint (&Print);
 	 Tst_GetQuestionsForNewTestFromDB (&Test,&Print);
          if (Print.NumQsts)
            {
@@ -466,7 +466,7 @@ void Tst_ShowNewTest (void)
 	    /***** Create new test exam in database *****/
 	    TstPrn_CreatePrintInDB (&Print);
 	    TstPrn_ComputeScoresAndStoreQuestionsOfPrint (&Print,
-	                                               false);	// Don't update question score
+	                                                  false);	// Don't update question score
 
             /***** Show test exam to be answered *****/
             Tst_ShowTestPrintToFillIt (&Print,NumExamsGeneratedByMe,Tst_REQUEST);
@@ -526,7 +526,7 @@ void Tst_ReceiveTestDraft (void)
 
    /***** Get basic parameters of the exam *****/
    /* Get test exam code from form */
-   TstPrn_ResetResult (&Print);
+   TstPrn_ResetPrint (&Print);
    if ((Print.PrnCod = TstPrn_GetParamPrnCod ()) <= 0)
       Lay_ShowErrorAndExit ("Wrong test exam.");
 
@@ -546,12 +546,12 @@ void Tst_ReceiveTestDraft (void)
       TstPrn_GetPrintQuestionsFromDB (&Print);
 
       /***** Get answers from form to assess a test *****/
-      Tst_GetAnswersFromForm (&Print);
+      TstPrn_GetAnswersFromForm (&Print);
 
       /***** Update test exam in database *****/
       TstPrn_ComputeScoresAndStoreQuestionsOfPrint (&Print,
-						 false);	// Don't update question score
-      TstPrn_UpdateExamInDB (&Print);
+						    false);	// Don't update question score
+      TstPrn_UpdatePrintInDB (&Print);
 
       /***** Show question and button to send the test *****/
       /* Start alert */
@@ -582,7 +582,7 @@ void Tst_AssessTest (void)
 
    /***** Get basic parameters of the exam *****/
    /* Get test exam code from form */
-   TstPrn_ResetResult (&Print);
+   TstPrn_ResetPrint (&Print);
    if ((Print.PrnCod = TstPrn_GetParamPrnCod ()) <= 0)
       Lay_ShowErrorAndExit ("Wrong test exam.");
 
@@ -602,7 +602,7 @@ void Tst_AssessTest (void)
       TstPrn_GetPrintQuestionsFromDB (&Print);
 
       /***** Get answers from form to assess a test *****/
-      Tst_GetAnswersFromForm (&Print);
+      TstPrn_GetAnswersFromForm (&Print);
 
       /***** Get if test exam will be visible by teachers *****/
       Print.Sent          = true;	// The exam has been finished and sent by student
@@ -610,8 +610,8 @@ void Tst_AssessTest (void)
 
       /***** Update test exam in database *****/
       TstPrn_ComputeScoresAndStoreQuestionsOfPrint (&Print,
-						 Gbl.Usrs.Me.Role.Logged == Rol_STD);	// Update question score?
-      TstPrn_UpdateExamInDB (&Print);
+						    Gbl.Usrs.Me.Role.Logged == Rol_STD);	// Update question score?
+      TstPrn_UpdatePrintInDB (&Print);
 
       /***** Begin box *****/
       Box_BoxBegin (NULL,Txt_Test_result,
@@ -653,10 +653,10 @@ void Tst_AssessTest (void)
   }
 
 /*****************************************************************************/
-/*********** Get questions and answers from form to assess a test ************/
+/****** Get questions and answers from form to assess a test exam print ******/
 /*****************************************************************************/
 
-static void Tst_GetAnswersFromForm (struct TstPrn_Print *Print)
+static void TstPrn_GetAnswersFromForm (struct TstPrn_Print *Print)
   {
    unsigned NumQst;
    char StrAns[3 + Cns_MAX_DECIMAL_DIGITS_UINT + 1];	// "Ansxx...x"
diff --git a/swad_test_print.c b/swad_test_print.c
index 61608e03..cc65a1b0 100644
--- a/swad_test_print.c
+++ b/swad_test_print.c
@@ -70,7 +70,7 @@ extern struct Globals Gbl;
 /***************************** Private prototypes ****************************/
 /*****************************************************************************/
 
-static void TstPrn_ResetExamExceptExaCod (struct TstPrn_Print *Print);
+static void TstPrn_ResetPrintExceptPrnCod (struct TstPrn_Print *Print);
 
 static void TstPrn_WriteQstAndAnsExam (struct UsrData *UsrDat,
 				       struct TstPrn_Print *Print,
@@ -148,13 +148,13 @@ static void TstPrn_ShowTagsPresentInAnExam (long ResCod);
 /******************************** Reset exam *********************************/
 /*****************************************************************************/
 
-void TstPrn_ResetResult (struct TstPrn_Print *Print)
+void TstPrn_ResetPrint (struct TstPrn_Print *Print)
   {
    Print->PrnCod = -1L;
-   TstPrn_ResetExamExceptExaCod (Print);
+   TstPrn_ResetPrintExceptPrnCod (Print);
   }
 
-static void TstPrn_ResetExamExceptExaCod (struct TstPrn_Print *Print)
+static void TstPrn_ResetPrintExceptPrnCod (struct TstPrn_Print *Print)
   {
    Print->TimeUTC[Dat_START_TIME] =
    Print->TimeUTC[Dat_END_TIME  ] = (time_t) 0;
@@ -184,12 +184,12 @@ void TstPrn_CreatePrintInDB (struct TstPrn_Print *Print)
   }
 
 /*****************************************************************************/
-/********************** Update test exam in database *************************/
+/******************** Update test exam print in database *********************/
 /*****************************************************************************/
 
-void TstPrn_UpdateExamInDB (const struct TstPrn_Print *Print)
+void TstPrn_UpdatePrintInDB (const struct TstPrn_Print *Print)
   {
-   /***** Update score in test exam *****/
+   /***** Update test exam print in database *****/
    Str_SetDecimalPointToUS ();		// To print the floating point as a dot
    DB_QueryUPDATE ("can not update test exam",
 		   "UPDATE tst_exams"
@@ -1641,7 +1641,7 @@ static void TstPrn_ShowExams (struct UsrData *UsrDat)
          row = mysql_fetch_row (mysql_res);
 
          /* Get test code (row[0]) */
-         TstPrn_ResetResult (&Print);
+         TstPrn_ResetPrint (&Print);
 	 if ((Print.PrnCod = Str_ConvertStrCodToLongCod (row[0])) < 0)
 	    Lay_ShowErrorAndExit ("Wrong code of test exam.");
 
@@ -1921,7 +1921,7 @@ void TstPrn_ShowOneExam (void)
    bool ICanViewScore;
 
    /***** Get the code of the test *****/
-   TstPrn_ResetResult (&Print);
+   TstPrn_ResetPrint (&Print);
    if ((Print.PrnCod = TstPrn_GetParamPrnCod ()) == -1L)
       Lay_ShowErrorAndExit ("Code of test is missing.");
 
@@ -2250,7 +2250,7 @@ void TstPrn_GetPrintDataByPrnCod (struct TstPrn_Print *Print)
       Str_SetDecimalPointToLocal ();	// Return to local system
      }
    else
-      TstPrn_ResetExamExceptExaCod (Print);
+      TstPrn_ResetPrintExceptPrnCod (Print);
 
    /***** Free structure that stores the query result *****/
    DB_FreeMySQLResult (&mysql_res);
diff --git a/swad_test_print.h b/swad_test_print.h
index ac2eeee2..fa1fd916 100644
--- a/swad_test_print.h
+++ b/swad_test_print.h
@@ -66,9 +66,9 @@ struct TstPrn_Print
 /***************************** Public prototypes *****************************/
 /*****************************************************************************/
 
-void TstPrn_ResetResult (struct TstPrn_Print *Print);
+void TstPrn_ResetPrint (struct TstPrn_Print *Print);
 void TstPrn_CreatePrintInDB (struct TstPrn_Print *Print);
-void TstPrn_UpdateExamInDB (const struct TstPrn_Print *Print);
+void TstPrn_UpdatePrintInDB (const struct TstPrn_Print *Print);
 
 void TstPrn_ShowExamAfterAssess (struct TstPrn_Print *Print);
 
diff --git a/swad_timeline.c b/swad_timeline.c
index 4cfc1efe..5ff5eefd 100644
--- a/swad_timeline.c
+++ b/swad_timeline.c
@@ -2101,7 +2101,7 @@ static void TL_PutFormGoToAction (const struct TL_Note *SocNot,
      {
       HTM_DIV_Begin ("class=\"TL_FORM\"");
 
-      /***** Start form with parameters depending on the type of note *****/
+      /***** Begin form with parameters depending on the type of note *****/
       switch (SocNot->NoteType)
 	{
 	 case TL_NOTE_INS_DOC_PUB_FILE:
@@ -2859,7 +2859,7 @@ static void TL_FormToShowHiddenComments (Act_Action_t ActionGbl,Act_Action_t Act
 		  IdComments);
 
    /***** Form and icon-text to show hidden comments *****/
-   /* Start form */
+   /* Begin form */
    if (Gbl.Usrs.Other.UsrDat.UsrCod > 0)
      {
       if (asprintf (&OnSubmit,"toggleComments('%s');"