diff --git a/js/swad18.64.js b/js/swad18.74.4.js
similarity index 96%
rename from js/swad18.64.js
rename to js/swad18.74.4.js
index 1cca452dc..9f197a2de 100644
--- a/js/swad18.64.js
+++ b/js/swad18.74.4.js
@@ -550,36 +550,36 @@ function readLastClicksData () {
 }
 
 /*****************************************************************************/
-/**** Automatic refresh of new publishings in social timeline using AJAX *****/
+/**** Automatic refresh of new publications in social timeline using AJAX ****/
 /*****************************************************************************/
 
 // This function must be called from time to time
-var objXMLHttpReqSoc = false;
+var objXMLHttpReqNewTL = false;
 function refreshNewTimeline () {
-	objXMLHttpReqSoc = AJAXCreateObject();
-	if (objXMLHttpReqSoc) {
+	objXMLHttpReqNewTL = AJAXCreateObject();
+	if (objXMLHttpReqNewTL) {
 		var RefreshParams = RefreshParamNxtActNewPub + '&' +
 							RefreshParamIdSes + '&' +
 							RefreshParamWhichUsrs;
 
-		objXMLHttpReqSoc.onreadystatechange = readNewTimelineData;	// onreadystatechange must be lowercase
-		objXMLHttpReqSoc.open('POST',ActionAJAX,true);
-		objXMLHttpReqSoc.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttpReqSoc.send(RefreshParams);
+		objXMLHttpReqNewTL.onreadystatechange = readNewTimelineData;	// onreadystatechange must be lowercase
+		objXMLHttpReqNewTL.open('POST',ActionAJAX,true);
+		objXMLHttpReqNewTL.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+		objXMLHttpReqNewTL.send(RefreshParams);
 	}
 }
 
 // Receives and show new social timeline data
 function readNewTimelineData () {
-	if (objXMLHttpReqSoc.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqSoc.status == 200) {
-			var endOfDelay = objXMLHttpReqSoc.responseText.indexOf('|',0);						// Get separator position
-			var delay = parseInt(objXMLHttpReqSoc.responseText.substring(0,endOfDelay));		// Get refresh delay
-			var htmlJustNowTimeline = objXMLHttpReqSoc.responseText.substring(endOfDelay + 1);	// Get HTML code for social timeline
+	if (objXMLHttpReqNewTL.readyState == 4) {	// Check if data have been received
+		if (objXMLHttpReqNewTL.status == 200) {
+			var endOfDelay = objXMLHttpReqNewTL.responseText.indexOf('|',0);						// Get separator position
+			var delay = parseInt(objXMLHttpReqNewTL.responseText.substring(0,endOfDelay));		// Get refresh delay
+			var htmlJustNowTimeline = objXMLHttpReqNewTL.responseText.substring(endOfDelay + 1);	// Get HTML code for timeline
 
 			var justNowTimeline = document.getElementById('just_now_timeline_list');// Access to UL for the just received timeline
 			if (justNowTimeline) {
-				justNowTimeline.innerHTML = htmlJustNowTimeline;	// Update list of publishings in just now timeline		
+				justNowTimeline.innerHTML = htmlJustNowTimeline;	// Update list of publications in just now timeline		
 				var countJustNowTimeline = justNowTimeline.childNodes.length;
 
 				if (countJustNowTimeline) {	// New pubs just retrieved
@@ -613,7 +613,7 @@ function readNewTimelineData () {
 }
 
 /*****************************************************************************/
-/* View new publishing in timeline by moving new timeline to top of timeline */
+/* View new publication in timeline by moving new timeline to top of timeline */
 /*****************************************************************************/
 
 function moveNewTimelineToTimeline () {
@@ -638,14 +638,14 @@ function moveNewTimelineToTimeline () {
 }
 
 /*****************************************************************************/
-/********* Refresh of old publishings in social timeline using AJAX **********/
+/******** Refresh of old publications in social timeline using AJAX **********/
 /*****************************************************************************/
 
 // This function is called when user clicks in link
-var objXMLHttpReqSoc = false;
+var objXMLHttpReqOldTL = false;
 function refreshOldTimeline () {
-	objXMLHttpReqSoc = AJAXCreateObject ();
-	if (objXMLHttpReqSoc) {
+	objXMLHttpReqOldTL = AJAXCreateObject ();
+	if (objXMLHttpReqOldTL) {
 		var RefreshParams = RefreshParamNxtActOldPub + '&' +
 							RefreshParamIdSes;
 		if (typeof RefreshParamUsr !== 'undefined') {
@@ -657,26 +657,22 @@ function refreshOldTimeline () {
 				RefreshParams += '&' + RefreshParamWhichUsrs;
 		}
 
-		objXMLHttpReqSoc.onreadystatechange = readOldTimelineData;	// onreadystatechange must be lowercase
-		objXMLHttpReqSoc.open('POST',ActionAJAX,true);
-		objXMLHttpReqSoc.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		objXMLHttpReqSoc.send(RefreshParams);
+		objXMLHttpReqOldTL.onreadystatechange = readOldTimelineData;	// onreadystatechange must be lowercase
+		objXMLHttpReqOldTL.open('POST',ActionAJAX,true);
+		objXMLHttpReqOldTL.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+		objXMLHttpReqOldTL.send(RefreshParams);
 	}
 }
 
 // Receives and show old social timeline data
 function readOldTimelineData () {
-	if (objXMLHttpReqSoc.readyState == 4) {	// Check if data have been received
-		if (objXMLHttpReqSoc.status == 200) {
-			var endOfDelay = objXMLHttpReqSoc.responseText.indexOf('|',0);					// Get separator position
-			var delay = parseInt(objXMLHttpReqSoc.responseText.substring(0,endOfDelay));	// Get refresh delay
-			var htmlOldTimeline = objXMLHttpReqSoc.responseText.substring(endOfDelay + 1);	// Get HTML code for social timeline
-
-			var oldTimeline = document.getElementById('old_timeline_list');	// Access to UL with the recent timeline
+	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 = htmlOldTimeline;	// Fill list of publishings in old timeline
+				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);
@@ -688,16 +684,14 @@ function readOldTimelineData () {
 					var timeline = document.getElementById("timeline_list");
 					for (var i=0; i<countOldTimeline; i++)
 						timeline.appendChild(oldTimeline.firstChild);
-				}
-				
-				if (countOldTimeline < RefreshParamMaxOldPubsToGetAndShow)	// Set to TL_MAX_OLD_PUBS_TO_GET_AND_SHOW
-					// No more old publishings
-					document.getElementById("view_old_posts_container").style.display = 'none';
-				else {
-					// There may be more publishings
+						
+					// 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';
 			}
 		}
 	}
diff --git a/swad_changelog.h b/swad_changelog.h
index 497fc2500..bed446d24 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -429,8 +429,6 @@ Lo de mutear anuncios, en principio prefiero hacer una opci
 // TODO: Change in usability of Announcements of exams, suggested by Javier Fernández Baldomero.
 // TODO: Al pulsar sobre una convocatoria de examen / aviso --> ir a la sección de esa convocatoria/aviso en lugar de mostrarlo repetido y destacado arriba
 
-// TODO: Fix important bug: Cuando se baja varias veces el timeline pulsando en "Ver más", se para aleatoriamente tras varias actualizaciones hacia abajo, no siempre llega hasta la primera publicación
-
 // TODO: Los usuarios que no tienes permiso para ver su perfil público, se debería mostrar algo, una mínima ficha sin tinmeline o algo así
 
 /*****************************************************************************/
@@ -452,10 +450,14 @@ En OpenSWAD:
 ps2pdf source.ps destination.pdf
 */
 
-#define Log_PLATFORM_VERSION	"SWAD 18.74 (2019-03-12)"
+#define Log_PLATFORM_VERSION	"SWAD 18.74.4 (2019-03-13)"
 #define CSS_FILE		"swad18.68.3.css"
-#define JS_FILE			"swad18.64.js"
+#define JS_FILE			"swad18.74.4.js"
 /*
+	Version 18.74.4:  Mar 13, 2019 	Fixed bug in JavaScript related to timeline. (239628 lines)
+	Version 18.74.3:  Mar 13, 2019 	Fixed bug in JavaScript related to timeline. (239628 lines)
+	Version 18.74.2:  Mar 13, 2019 	Fixed bug in JavaScript related to timeline. (239628 lines)
+	Version 18.74.1:  Mar 12, 2019 	Changes in JavaScript related to timeline. (239630 lines)
 	Version 18.74:    Mar 12, 2019 	Module swad_social is renamed swad_timeline. (239633 lines)
 	Version 18.73.7:  Mar 12, 2019 	Code refactoring related to list of users and options. (239614 lines)
 	Version 18.73.6:  Mar 12, 2019 	Create new email message from list of users. This option will be active when email action allows selecting individual users. (239580 lines)
diff --git a/swad_layout.c b/swad_layout.c
index b964669d8..be703ce7a 100644
--- a/swad_layout.c
+++ b/swad_layout.c
@@ -734,11 +734,9 @@ static void Lay_WriteScriptParamsAJAX (void)
 	    put parameters used by AJAX */
 	 fprintf (Gbl.F.Out,"var RefreshParamNxtActNewPub = \"act=%ld\";\n"
 			    "var RefreshParamNxtActOldPub = \"act=%ld\";\n"
-			    "var RefreshParamMaxOldPubsToGetAndShow = \"%u\";\n"
 			    "var RefreshParamWhichUsrs = \"WhichUsrs=%u\";\n",
 		  Act_GetActCod (ActRefNewSocPubGbl),
 		  Act_GetActCod (ActRefOldSocPubGbl),
-		  TL_MAX_OLD_PUBS_TO_GET_AND_SHOW,
 		  (unsigned) Gbl.Timeline.WhichUsrs);
 	 break;
       case ActSeeOthPubPrf:
@@ -756,10 +754,8 @@ static void Lay_WriteScriptParamsAJAX (void)
 	    Nck_GetNicknameFromUsrCod (Gbl.Usrs.Other.UsrDat.UsrCod,
 				       Gbl.Usrs.Other.UsrDat.Nickname);
 	 fprintf (Gbl.F.Out,"var RefreshParamNxtActOldPub = \"act=%ld\";\n"
-			    "var RefreshParamMaxOldPubsToGetAndShow = \"%u\";\n"
 			    "var RefreshParamUsr = \"OtherUsrCod=%s\";\n",
 		  Act_GetActCod (ActRefOldSocPubUsr),
-		  TL_MAX_OLD_PUBS_TO_GET_AND_SHOW,
 		  Gbl.Usrs.Other.UsrDat.EncryptedUsrCod);
 	 break;
       default:
diff --git a/swad_timeline.c b/swad_timeline.c
index 0b46d1cda..0d0f8c1e9 100644
--- a/swad_timeline.c
+++ b/swad_timeline.c
@@ -109,7 +109,7 @@ struct TL_Comment
   {
    long PubCod;
    long UsrCod;
-   long NotCod;		// Note code
+   long NotCod;		// Note code to which this comment belongs
    time_t DateTimeUTC;
    unsigned NumFavs;	// Number of times (users) this comment has been favourited
    char Content[Cns_MAX_BYTES_LONG_TEXT + 1];
@@ -136,8 +136,8 @@ static void TL_ShowTimelineUsrHighlightingNot (long NotCod);
 static void TL_GetAndShowOldTimeline (TL_TimelineUsrOrGbl_t TimelineUsrOrGbl);
 
 static void TL_BuildQueryToGetTimeline (char **Query,
-                                         TL_TimelineUsrOrGbl_t TimelineUsrOrGbl,
-                                         TL_WhatToGetFromTimeline_t WhatToGetFromTimeline);
+                                        TL_TimelineUsrOrGbl_t TimelineUsrOrGbl,
+                                        TL_WhatToGetFromTimeline_t WhatToGetFromTimeline);
 static long TL_GetPubCodFromSession (const char *FieldName);
 static void TL_UpdateLastPubCodIntoSession (void);
 static void TL_UpdateFirstPubCodIntoSession (long FirstPubCod);
@@ -376,8 +376,8 @@ void TL_ShowTimelineGbl2 (void)
       /***** Show the note highlighted *****/
       TL_GetDataOfNoteByCod (&SocNot);
       TL_WriteNote (&SocNot,
-			   TopMessages[NotifyEvent],UsrDat.UsrCod,
-			   true,true);
+		    TopMessages[NotifyEvent],UsrDat.UsrCod,
+		    true,true);
      }
 
    /***** Show timeline with possible highlighted note *****/
@@ -391,8 +391,8 @@ static void TL_ShowTimelineGblHighlightingNot (long NotCod)
 
    /***** Build query to get timeline *****/
    TL_BuildQueryToGetTimeline (&Query,
-	                        TL_TIMELINE_GBL,
-                                TL_GET_RECENT_TIMELINE);
+	                       TL_TIMELINE_GBL,
+                               TL_GET_RECENT_TIMELINE);
 
    /***** Show timeline *****/
    TL_ShowTimeline (Query,Txt_Timeline,NotCod);
@@ -417,8 +417,8 @@ static void TL_ShowTimelineUsrHighlightingNot (long NotCod)
 
    /***** Build query to show timeline with publications of a unique user *****/
    TL_BuildQueryToGetTimeline (&Query,
-	                        TL_TIMELINE_USR,
-                                TL_GET_RECENT_TIMELINE);
+	                       TL_TIMELINE_USR,
+                               TL_GET_RECENT_TIMELINE);
 
    /***** Show timeline *****/
    snprintf (Gbl.Title,sizeof (Gbl.Title),
@@ -449,8 +449,8 @@ void TL_RefreshNewTimelineGbl (void)
 
       /***** Build query to get timeline *****/
       TL_BuildQueryToGetTimeline (&Query,
-	                           TL_TIMELINE_GBL,
-				   TL_GET_ONLY_NEW_PUBS);
+	                          TL_TIMELINE_GBL,
+				  TL_GET_ONLY_NEW_PUBS);
 
       /***** Show new timeline *****/
       TL_InsertNewPubsInTimeline (Query);
@@ -494,8 +494,8 @@ static void TL_GetAndShowOldTimeline (TL_TimelineUsrOrGbl_t TimelineUsrOrGbl)
 
    /***** Build query to get timeline *****/
    TL_BuildQueryToGetTimeline (&Query,
-	                        TimelineUsrOrGbl,
-                                TL_GET_ONLY_OLD_PUBS);
+	                       TimelineUsrOrGbl,
+                               TL_GET_ONLY_OLD_PUBS);
 
    /***** Show old timeline *****/
    TL_ShowOldPubsInTimeline (Query);
@@ -527,8 +527,8 @@ void TL_MarkMyNotifAsSeen (void)
 #define TL_MAX_BYTES_SUBQUERY_ALREADY_EXISTS (256 - 1)
 
 static void TL_BuildQueryToGetTimeline (char **Query,
-                                         TL_TimelineUsrOrGbl_t TimelineUsrOrGbl,
-                                         TL_WhatToGetFromTimeline_t WhatToGetFromTimeline)
+                                        TL_TimelineUsrOrGbl_t TimelineUsrOrGbl,
+                                        TL_WhatToGetFromTimeline_t WhatToGetFromTimeline)
   {
    char SubQueryPublishers[128];
    char SubQueryRangeBottom[128];
@@ -712,7 +712,8 @@ static void TL_BuildQueryToGetTimeline (char **Query,
 	 switch (TimelineUsrOrGbl)
 	   {
 	    case TL_TIMELINE_USR:	// Show the timeline of a user
-	       sprintf (SubQueryRangeBottom,"PubCod>%ld AND ",RangePubsToGet.Bottom);
+	       sprintf (SubQueryRangeBottom,"PubCod>%ld AND ",
+		        RangePubsToGet.Bottom);
 	       break;
 	    case TL_TIMELINE_GBL:	// Show the global timeline
 	       switch (Gbl.Timeline.WhichUsrs)
@@ -721,7 +722,7 @@ static void TL_BuildQueryToGetTimeline (char **Query,
 		     sprintf (SubQueryRangeBottom,"social_pubs.PubCod>%ld AND ",
 			      RangePubsToGet.Bottom);
 		     break;
-		  case TL_USRS_ALL:	// Show the timeline of all users
+		  case TL_USRS_ALL:		// Show the timeline of all users
 		     sprintf (SubQueryRangeBottom,"PubCod>%ld AND ",
 			      RangePubsToGet.Bottom);
 		     break;
@@ -738,7 +739,8 @@ static void TL_BuildQueryToGetTimeline (char **Query,
 	 switch (TimelineUsrOrGbl)
 	   {
 	    case TL_TIMELINE_USR:	// Show the timeline of a user
-	       sprintf (SubQueryRangeTop,"PubCod<%ld AND ",RangePubsToGet.Top);
+	       sprintf (SubQueryRangeTop,"PubCod<%ld AND ",
+		        RangePubsToGet.Top);
 	       break;
 	    case TL_TIMELINE_GBL:	// Show the global timeline
 	       switch (Gbl.Timeline.WhichUsrs)
@@ -882,7 +884,8 @@ static long TL_GetPubCodFromSession (const char *FieldName)
 
    /***** Get last publication code from database *****/
    if (DB_QuerySELECT (&mysql_res,"can not get publication code from session",
-		       "SELECT %s FROM sessions WHERE SessionId='%s'",
+		       "SELECT %s FROM sessions"
+		       " WHERE SessionId='%s'",
 		       FieldName,Gbl.Session.Id) != 1)
       Lay_ShowErrorAndExit (Txt_The_session_has_expired);
 
@@ -1027,9 +1030,9 @@ static void TL_ShowTimeline (char *Query,
 
       /* Write note */
       TL_WriteNote (&SocNot,
-                           SocPub.TopMessage,SocPub.PublisherCod,
-			   SocNot.NotCod == NotCodToHighlight,
-			   false);
+                    SocPub.TopMessage,SocPub.PublisherCod,
+		    SocNot.NotCod == NotCodToHighlight,
+		    false);
      }
    fprintf (Gbl.F.Out,"</ul>");
 
@@ -1302,8 +1305,8 @@ static void TL_InsertNewPubsInTimeline (char *Query)
 
       /* Write note */
       TL_WriteNote (&SocNot,
-                           SocPub.TopMessage,SocPub.PublisherCod,
-                           false,false);
+                    SocPub.TopMessage,SocPub.PublisherCod,
+                    false,false);
      }
 
    /***** Free structure that stores the query result *****/
@@ -1344,8 +1347,8 @@ static void TL_ShowOldPubsInTimeline (char *Query)
 
       /* Write note */
       TL_WriteNote (&SocNot,
-                           SocPub.TopMessage,SocPub.PublisherCod,
-                           false,false);
+                    SocPub.TopMessage,SocPub.PublisherCod,
+                    false,false);
      }
 
    /***** Free structure that stores the query result *****/
@@ -3242,8 +3245,8 @@ static long TL_ReceiveComment (void)
 
 	 /***** Show the note just commented *****/
 	 TL_WriteNote (&SocNot,
-	                      TL_TOP_MESSAGE_COMMENTED,Gbl.Usrs.Me.UsrDat.UsrCod,
-	                      true,true);
+	               TL_TOP_MESSAGE_COMMENTED,Gbl.Usrs.Me.UsrDat.UsrCod,
+	               true,true);
 	}
 
       /***** Free image *****/
@@ -3782,8 +3785,8 @@ static void TL_RequestRemovalNote (void)
 
 	 /* Show note */
 	 TL_WriteNote (&SocNot,
-			      TL_TOP_MESSAGE_NONE,-1L,
-			      false,true);
+		       TL_TOP_MESSAGE_NONE,-1L,
+		       false,true);
 
 	 /* End alert */
 	 Gbl.Timeline.NotCod = SocNot.NotCod;	// Note to be removed
diff --git a/swad_timeline.h b/swad_timeline.h
index e308104a8..aa05ad942 100644
--- a/swad_timeline.h
+++ b/swad_timeline.h
@@ -35,9 +35,8 @@
 
 // Number of recent publishings got and shown the first time, before refreshing
 #define TL_MAX_NEW_PUBS_TO_GET_AND_SHOW	10000	// Unlimited
-#define TL_MAX_REC_PUBS_TO_GET_AND_SHOW	10	// Recent publishings to show (first time)
-#define TL_MAX_OLD_PUBS_TO_GET_AND_SHOW	10	// Old publishings are retrieved in packs of this size
-						// This constant is also used in JavaScript function readOldTimelineData
+#define TL_MAX_REC_PUBS_TO_GET_AND_SHOW	   10	// Recent publishings to show (first time)
+#define TL_MAX_OLD_PUBS_TO_GET_AND_SHOW	   20	// Old publishings are retrieved in packs of this size
 
 /*****************************************************************************/
 /******************************** Public types *******************************/