From 11a1a2f04b7ed088b1121f913c3d05faa6626619 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Antonio=20Ca=C3=B1as=20Vargas?= <acanas@ugr.es>
Date: Mon, 7 Oct 2019 23:02:50 +0200
Subject: [PATCH] Version19.31.19

---
 swad_attendance.c | 247 +++++++++++++++++++++-------------------------
 swad_banner.c     |  44 +++++----
 swad_centre.c     | 114 ++++++++++-----------
 swad_changelog.h  |   3 +-
 4 files changed, 200 insertions(+), 208 deletions(-)

diff --git a/swad_attendance.c b/swad_attendance.c
index f4ae8051..899bbb0a 100644
--- a/swad_attendance.c
+++ b/swad_attendance.c
@@ -410,15 +410,21 @@ static void Att_ShowOneAttEvent (struct AttendanceEvent *Att,bool ShowOnlyThisAt
 	StartEndTime <= (Dat_StartEndTime_t) (Dat_NUM_START_END_TIME - 1);
 	StartEndTime++)
      {
-      fprintf (Gbl.F.Out,"<td id=\"att_date_%u_%u\" class=\"%s LEFT_BOTTOM",
-	       (unsigned) StartEndTime,UniqueId,
-	       Att->Hidden ? (Att->Open ? "DATE_GREEN_LIGHT" :
-					  "DATE_RED_LIGHT") :
-			     (Att->Open ? "DATE_GREEN" :
-					  "DATE_RED"));
-      if (!ShowOnlyThisAttEventComplete)
-	 fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
-      fprintf (Gbl.F.Out,"\">");
+      if (ShowOnlyThisAttEventComplete)
+	 Tbl_StartCellAttr ("id=\"att_date_%u_%u\" class=\"%s LEFT_BOTTOM\"",
+			    (unsigned) StartEndTime,UniqueId,
+			    Att->Hidden ? (Att->Open ? "DATE_GREEN_LIGHT" :
+						       "DATE_RED_LIGHT") :
+					  (Att->Open ? "DATE_GREEN" :
+						       "DATE_RED"));
+      else
+	 Tbl_StartCellAttr ("id=\"att_date_%u_%u\" class=\"%s LEFT_BOTTOM COLOR%u\"",
+			    (unsigned) StartEndTime,UniqueId,
+			    Att->Hidden ? (Att->Open ? "DATE_GREEN_LIGHT" :
+						       "DATE_RED_LIGHT") :
+					  (Att->Open ? "DATE_GREEN" :
+						       "DATE_RED"),
+			    Gbl.RowEvenOdd);
       fprintf (Gbl.F.Out,"<script type=\"text/javascript\">"
 			 "writeLocalDateHMSFromUTC('att_date_%u_%u',%ld,"
 			 "%u,'<br />','%s',true,true,0x7);"
@@ -429,10 +435,10 @@ static void Att_ShowOneAttEvent (struct AttendanceEvent *Att,bool ShowOnlyThisAt
      }
 
    /* Attendance event title */
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP");
-   if (!ShowOnlyThisAttEventComplete)
-      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
-   fprintf (Gbl.F.Out,"\">");
+   if (ShowOnlyThisAttEventComplete)
+      Tbl_StartCellAttr ("class=\"LEFT_TOP\"");
+   else
+      Tbl_StartCellAttr ("class=\"LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
    Lay_StartArticle (Anchor);
    Att_PutLinkAttEvent (Att,Txt_View_event,Att->Title,
 	                Att->Hidden ? "ASG_TITLE_LIGHT" :
@@ -441,14 +447,16 @@ static void Att_ShowOneAttEvent (struct AttendanceEvent *Att,bool ShowOnlyThisAt
    Tbl_EndCell ();
 
    /* Number of students in this event */
-   fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP",
-            Att->Hidden ? "ASG_TITLE_LIGHT" :
-	                  "ASG_TITLE");
-   if (!ShowOnlyThisAttEventComplete)
-      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
-   fprintf (Gbl.F.Out,"\">"
-	              "%u",
-            Att->NumStdsTotal);
+   if (ShowOnlyThisAttEventComplete)
+      Tbl_StartCellAttr ("class=\"%s RIGHT_TOP\"",
+			 Att->Hidden ? "ASG_TITLE_LIGHT" :
+				       "ASG_TITLE");
+   else
+      Tbl_StartCellAttr ("class=\"%s RIGHT_TOP COLOR%u\"",
+			 Att->Hidden ? "ASG_TITLE_LIGHT" :
+				       "ASG_TITLE",
+			 Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"%u",Att->NumStdsTotal);
    Tbl_EndCell ();
 
    Tbl_EndRow ();
@@ -456,14 +464,12 @@ static void Att_ShowOneAttEvent (struct AttendanceEvent *Att,bool ShowOnlyThisAt
    /***** Write second row of data of this attendance event *****/
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td colspan=\"2\" class=\"LEFT_TOP");
-   if (!ShowOnlyThisAttEventComplete)
-      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
-   fprintf (Gbl.F.Out,"\">");
-
    /* Author of the attendance event */
+   if (ShowOnlyThisAttEventComplete)
+      Tbl_StartCellAttr ("colspan=\"2\" class=\"LEFT_TOP\"");
+   else
+      Tbl_StartCellAttr ("colspan=\"2\" class=\"LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
    Att_WriteAttEventAuthor (Att);
-
    Tbl_EndCell ();
 
    /* Text of the attendance event */
@@ -471,20 +477,16 @@ static void Att_ShowOneAttEvent (struct AttendanceEvent *Att,bool ShowOnlyThisAt
    Str_ChangeFormat (Str_FROM_HTML,Str_TO_RIGOROUS_HTML,
                      Description,Cns_MAX_BYTES_TEXT,false);	// Convert from HTML to recpectful HTML
    Str_InsertLinks (Description,Cns_MAX_BYTES_TEXT,60);	// Insert links
-
-   fprintf (Gbl.F.Out,"<td colspan=\"2\" class=\"LEFT_TOP");
-   if (!ShowOnlyThisAttEventComplete)
-      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
-   fprintf (Gbl.F.Out,"\">");
-
+   if (ShowOnlyThisAttEventComplete)
+      Tbl_StartCellAttr ("colspan=\"2\" class=\"LEFT_TOP\"");
+   else
+      Tbl_StartCellAttr ("colspan=\"2\" class=\"LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
    if (Gbl.Crs.Grps.NumGrps)
       Att_GetAndWriteNamesOfGrpsAssociatedToAttEvent (Att);
-
    fprintf (Gbl.F.Out,"<div class=\"%s\">%s</div>",
             Att->Hidden ? "DAT_LIGHT" :
         	          "DAT",
             Description);
-
    Tbl_EndCell ();
 
    Tbl_EndRow ();
@@ -1101,12 +1103,12 @@ void Att_RequestCreatOrEditAttEvent (void)
    /***** Attendance event title *****/
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td class=\"RIGHT_TOP\">");
+   Tbl_StartCellAttr ("class=\"RIGHT_TOP\"");
    fprintf (Gbl.F.Out,"<label for=\"Title\" class=\"%s\">%s:</label>",
             The_ClassFormInBox[Gbl.Prefs.Theme],Txt_Title);
    Tbl_EndCell ();
 
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\">");
+   Tbl_StartCellAttr ("class=\"LEFT_TOP\"");
    fprintf (Gbl.F.Out,"<input type=\"text\" id=\"Title\" name=\"Title\""
                       " size=\"45\" maxlength=\"%u\" value=\"%s\""
                       " required=\"required\" />",
@@ -1121,12 +1123,12 @@ void Att_RequestCreatOrEditAttEvent (void)
    /***** Visibility of comments *****/
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td class=\"RIGHT_TOP\">");
+   Tbl_StartCellAttr ("class=\"RIGHT_TOP\"");
    fprintf (Gbl.F.Out,"<label for=\"ComTchVisible\" class=\"%s\">%s:</label>",
             The_ClassFormInBox[Gbl.Prefs.Theme],Txt_Teachers_comment);
    Tbl_EndCell ();
 
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\">");
+   Tbl_StartCellAttr ("class=\"LEFT_TOP\"");
    fprintf (Gbl.F.Out,"<select id=\"ComTchVisible\" name=\"ComTchVisible\">");
 
    fprintf (Gbl.F.Out,"<option value=\"N\"");
@@ -1148,12 +1150,12 @@ void Att_RequestCreatOrEditAttEvent (void)
    /***** Attendance event description *****/
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td class=\"RIGHT_TOP\">");
+   Tbl_StartCellAttr ("class=\"RIGHT_TOP\"");
    fprintf (Gbl.F.Out,"<label for=\"Txt\" class=\"%s\">%s:</label>",
             The_ClassFormInBox[Gbl.Prefs.Theme],Txt_Description);
    Tbl_EndCell ();
 
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\">");
+   Tbl_StartCellAttr ("class=\"LEFT_TOP\"");
    fprintf (Gbl.F.Out,"<textarea id=\"Txt\" name=\"Txt\""
                       " cols=\"60\" rows=\"5\">");
    if (!ItsANewAttEvent)
@@ -1199,19 +1201,18 @@ static void Att_ShowLstGrpsToEditAttEvent (long AttCod)
       /***** Start box and table *****/
       Tbl_StartRow ();
 
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\">",
-	       The_ClassFormInBox[Gbl.Prefs.Theme]);
+      Tbl_StartCellAttr ("class=\"%s RIGHT_TOP\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
       fprintf (Gbl.F.Out,"%s:",Txt_Groups);
       Tbl_EndCell ();
 
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\">");
+      Tbl_StartCellAttr ("class=\"LEFT_TOP\"");
       Box_StartBoxTable ("100%",NULL,NULL,
                          NULL,Box_NOT_CLOSABLE,0);
 
       /***** First row: checkbox to select the whole course *****/
       Tbl_StartRow ();
 
-      fprintf (Gbl.F.Out,"<td colspan=\"7\" class=\"DAT LEFT_MIDDLE\">");
+      Tbl_StartCellAttr ("colspan=\"7\" class=\"DAT LEFT_MIDDLE\"");
       fprintf (Gbl.F.Out,"<label>"
                          "<input type=\"checkbox\" id=\"WholeCrs\" name=\"WholeCrs\" value=\"Y\"");
       if (!Att_CheckIfAttEventIsAssociatedToGrps (AttCod))
@@ -2098,21 +2099,17 @@ static void Att_WriteRowUsrToCallTheRoll (unsigned NumUsr,
    /***** Icon to show if the user is already present *****/
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td class=\"BT%u\">",
-	    Gbl.RowEvenOdd);
-   fprintf (Gbl.F.Out,"<label for=\"Std%u\">",
-            NumUsr);
+   Tbl_StartCellAttr ("class=\"BT%u\"",Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"<label for=\"Std%u\">",NumUsr);
    Att_PutCheckOrCross (Present);
    fprintf (Gbl.F.Out,"</label>");
    Tbl_EndCell ();
 
    /***** Checkbox to select user *****/
-   fprintf (Gbl.F.Out,"<td class=\"CENTER_TOP COLOR%u\">",
-	    Gbl.RowEvenOdd);
-   fprintf (Gbl.F.Out,"<input type=\"checkbox\" id=\"Std%u\" name=\"UsrCodStd\""
-	              " value=\"%s\"",
-	    NumUsr,
-	    UsrDat->EncryptedUsrCod);
+   Tbl_StartCellAttr ("class=\"CENTER_TOP COLOR%u\"",Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"<input type=\"checkbox\""
+	              " id=\"Std%u\" name=\"UsrCodStd\" value=\"%s\"",
+	    NumUsr,UsrDat->EncryptedUsrCod);
    if (Present)	// This student has attended to the event?
       fprintf (Gbl.F.Out," checked=\"checked\"");
    if (!ICanChangeStdAttendance)
@@ -2121,18 +2118,17 @@ static void Att_WriteRowUsrToCallTheRoll (unsigned NumUsr,
    Tbl_EndCell ();
 
    /***** Write number of student in the list *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
-            UsrDat->Accepted ? "DAT_N" :
-        	               "DAT",
-            Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"%s RIGHT_TOP COLOR%u\">",
+		      UsrDat->Accepted ? "DAT_N" :
+					 "DAT",
+		      Gbl.RowEvenOdd);
    fprintf (Gbl.F.Out,"%u",NumUsr);
    Tbl_EndCell ();
 
    /***** Show student's photo *****/
    if (Gbl.Usrs.Listing.WithPhotos)
      {
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP COLOR%u\">",
-	       Gbl.RowEvenOdd);
+      Tbl_StartCellAttr ("class=\"LEFT_TOP COLOR%u\">",Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowingUsrPhotoIsAllowed (UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                                            NULL,
@@ -2141,18 +2137,18 @@ static void Att_WriteRowUsrToCallTheRoll (unsigned NumUsr,
      }
 
    /***** Write user's ID ******/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP COLOR%u\">",
-            UsrDat->Accepted ? "DAT_SMALL_N" :
-        	               "DAT_SMALL",
-            Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"%s LEFT_TOP COLOR%u\">",
+		      UsrDat->Accepted ? "DAT_SMALL_N" :
+					 "DAT_SMALL",
+		      Gbl.RowEvenOdd);
    ID_WriteUsrIDs (UsrDat,NULL);
    Tbl_EndCell ();
 
    /***** Write student's name *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP COLOR%u\">",
-	    UsrDat->Accepted ? "DAT_SMALL_N" :
-		               "DAT_SMALL",
-	    Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"%s LEFT_TOP COLOR%u\"",
+		      UsrDat->Accepted ? "DAT_SMALL_N" :
+					 "DAT_SMALL",
+		      Gbl.RowEvenOdd);
    fprintf (Gbl.F.Out,"%s",UsrDat->Surname1);
    if (UsrDat->Surname2[0])
      fprintf (Gbl.F.Out," %s",UsrDat->Surname2);
@@ -2160,8 +2156,7 @@ static void Att_WriteRowUsrToCallTheRoll (unsigned NumUsr,
    Tbl_EndCell ();
 
    /***** Student's comment: write form or text */
-   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL LEFT_TOP COLOR%u\">",
-	    Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"DAT_SMALL LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
    if (ICanEditStdComment)	// Show with form
       fprintf (Gbl.F.Out,"<textarea name=\"CommentStd%ld\""
 	                 " cols=\"40\" rows=\"3\">"
@@ -2177,8 +2172,7 @@ static void Att_WriteRowUsrToCallTheRoll (unsigned NumUsr,
    Tbl_EndCell ();
 
    /***** Teacher's comment: write form, text or nothing */
-   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL LEFT_TOP COLOR%u\">",
-	    Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"DAT_SMALL LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
    if (ICanEditTchComment)		// Show with form
       fprintf (Gbl.F.Out,"<textarea name=\"CommentTch%ld\""
 	                 " cols=\"40\" rows=\"3\">"
@@ -3146,8 +3140,7 @@ static void Att_ListEventsToSelect (Att_TypeOfView_t TypeOfView)
       /* Write a row for this event */
       Tbl_StartRow ();
 
-      fprintf (Gbl.F.Out,"<td class=\"DAT CENTER_TOP COLOR%u\">",
-	       Gbl.RowEvenOdd);
+      Tbl_StartCellAttr ("class=\"DAT CENTER_TOP COLOR%u\"",Gbl.RowEvenOdd);
       fprintf (Gbl.F.Out,"<input type=\"checkbox\""
 			 " id=\"Att%u\" name=\"AttCods\" value=\"%ld\"",
 	       NumAttEvent,
@@ -3157,14 +3150,12 @@ static void Att_ListEventsToSelect (Att_TypeOfView_t TypeOfView)
       fprintf (Gbl.F.Out," />");
       Tbl_EndCell ();
 
-      fprintf (Gbl.F.Out,"<td class=\"DAT RIGHT_TOP COLOR%u\">",
-	       Gbl.RowEvenOdd);
+      Tbl_StartCellAttr ("class=\"DAT RIGHT_TOP COLOR%u\"",Gbl.RowEvenOdd);
       fprintf (Gbl.F.Out,"<label for=\"Att%u\">%u:</label>",
 	       NumAttEvent,NumAttEvent + 1);
       Tbl_EndCell ();
 
-      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_TOP COLOR%u\">",
-	       Gbl.RowEvenOdd);
+      Tbl_StartCellAttr ("class=\"DAT LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
       fprintf (Gbl.F.Out,"<label for=\"Att%u\">"
                          "<span id=\"att_date_start_%u\"></span>"
                          "</label>"
@@ -3177,13 +3168,11 @@ static void Att_ListEventsToSelect (Att_TypeOfView_t TypeOfView)
                (unsigned) Gbl.Prefs.DateFormat,Txt_Today);
       Tbl_EndCell ();
 
-      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_TOP COLOR%u\">",
-	       Gbl.RowEvenOdd);
+      Tbl_StartCellAttr ("class=\"DAT LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
       fprintf (Gbl.F.Out,"%s",Gbl.AttEvents.Lst[NumAttEvent].Title);
       Tbl_EndCell ();
 
-      fprintf (Gbl.F.Out,"<td class=\"DAT RIGHT_TOP COLOR%u\">",
-	       Gbl.RowEvenOdd);
+      Tbl_StartCellAttr ("class=\"DAT RIGHT_TOP COLOR%u\"",Gbl.RowEvenOdd);
       fprintf (Gbl.F.Out,"%u",Gbl.AttEvents.Lst[NumAttEvent].NumStdsTotal);
       Tbl_EndCell ();
 
@@ -3195,7 +3184,7 @@ static void Att_ListEventsToSelect (Att_TypeOfView_t TypeOfView)
      {
       Tbl_StartRow ();
 
-      fprintf (Gbl.F.Out,"<td colspan=\"5\" class=\"CENTER_MIDDLE\">");
+      Tbl_StartCellAttr ("colspan=\"5\" class=\"CENTER_MIDDLE\"");
       Frm_LinkFormSubmitAnimated (Txt_Update_attendance,
 	                          The_ClassFormInBoxBold[Gbl.Prefs.Theme],
 				  NULL);
@@ -3281,9 +3270,9 @@ static void Att_ListUsrsAttendanceTable (Att_TypeOfView_t TypeOfView,
      {
       Tbl_StartRow ();
 
-      fprintf (Gbl.F.Out,"<td colspan=\"%u\" class=\"DAT_N_LINE_TOP RIGHT_MIDDLE\">",
-	       Gbl.Usrs.Listing.WithPhotos ? 4 :
-					     3);
+      Tbl_StartCellAttr ("colspan=\"%u\" class=\"DAT_N_LINE_TOP RIGHT_MIDDLE\"",
+			 Gbl.Usrs.Listing.WithPhotos ? 4 :
+						       3);
       fprintf (Gbl.F.Out,"%s:",Txt_Number_of_users);
       Tbl_EndCell ();
 
@@ -3292,7 +3281,7 @@ static void Att_ListUsrsAttendanceTable (Att_TypeOfView_t TypeOfView,
 	   NumAttEvent++)
 	 if (Gbl.AttEvents.Lst[NumAttEvent].Selected)
 	   {
-	    fprintf (Gbl.F.Out,"<td class=\"DAT_N_LINE_TOP RIGHT_MIDDLE\">");
+	    Tbl_StartCellAttr ("class=\"DAT_N_LINE_TOP RIGHT_MIDDLE\"");
 	    fprintf (Gbl.F.Out,"%u",
 		     Gbl.AttEvents.Lst[NumAttEvent].NumStdsFromList);
 	    Tbl_EndCell ();
@@ -3300,7 +3289,7 @@ static void Att_ListUsrsAttendanceTable (Att_TypeOfView_t TypeOfView,
 	    Total += Gbl.AttEvents.Lst[NumAttEvent].NumStdsFromList;
 	   }
 
-      fprintf (Gbl.F.Out,"<td class=\"DAT_N_LINE_TOP RIGHT_MIDDLE\">");
+      Tbl_StartCellAttr ("class=\"DAT_N_LINE_TOP RIGHT_MIDDLE\"");
       fprintf (Gbl.F.Out,"%u",Total);
       Tbl_EndCell ();
 
@@ -3383,19 +3372,18 @@ static void Att_WriteRowUsrSeveralAttEvents (unsigned NumUsr,struct UsrData *Usr
    /***** Write number of user in the list *****/
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE COLOR%u\">",
-            UsrDat->Accepted ? "DAT_N" :
-        	               "DAT",
-            Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE COLOR%u\"",
+		      UsrDat->Accepted ? "DAT_N" :
+					 "DAT",
+		      Gbl.RowEvenOdd);
    fprintf (Gbl.F.Out,"%u",NumUsr + 1);
    Tbl_EndCell ();
 
    /***** Show user's photo *****/
    if (Gbl.Usrs.Listing.WithPhotos)
      {
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE COLOR%u\""
-	                 " style=\"width:22px;\">",
-	       Gbl.RowEvenOdd);
+      Tbl_StartCellAttr ("class=\"LEFT_MIDDLE COLOR%u\" style=\"width:22px;\"",
+	                 Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowingUsrPhotoIsAllowed (UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                                            NULL,
@@ -3404,18 +3392,18 @@ static void Att_WriteRowUsrSeveralAttEvents (unsigned NumUsr,struct UsrData *Usr
      }
 
    /***** Write user's ID ******/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE COLOR%u\">",
-            UsrDat->Accepted ? "DAT_SMALL_N" :
-        	               "DAT_SMALL",
-            Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"%s LEFT_MIDDLE COLOR%u\">",
+		      UsrDat->Accepted ? "DAT_SMALL_N" :
+					 "DAT_SMALL",
+		      Gbl.RowEvenOdd);
    ID_WriteUsrIDs (UsrDat,NULL);
    Tbl_EndCell ();
 
    /***** Write user's name *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE COLOR%u\">",
-	    UsrDat->Accepted ? "DAT_SMALL_N" :
-		               "DAT_SMALL",
-	    Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"%s LEFT_MIDDLE COLOR%u\"",
+		      UsrDat->Accepted ? "DAT_SMALL_N" :
+					 "DAT_SMALL",
+		      Gbl.RowEvenOdd);
    fprintf (Gbl.F.Out,"%s",UsrDat->Surname1);
    if (UsrDat->Surname2[0])
      fprintf (Gbl.F.Out," %s",UsrDat->Surname2);
@@ -3435,7 +3423,7 @@ static void Att_WriteRowUsrSeveralAttEvents (unsigned NumUsr,struct UsrData *Usr
 	                                              UsrDat->UsrCod);
 
 	 /* Write check or cross */
-	 fprintf (Gbl.F.Out,"<td class=\"BM%u\">",Gbl.RowEvenOdd);
+	 Tbl_StartCellAttr ("class=\"BM%u\"",Gbl.RowEvenOdd);
 	 Att_PutCheckOrCross (Present);
 	 Tbl_EndCell ();
 
@@ -3444,8 +3432,7 @@ static void Att_WriteRowUsrSeveralAttEvents (unsigned NumUsr,struct UsrData *Usr
 	}
 
    /***** Last column with the number of times this user is present *****/
-   fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_MIDDLE COLOR%u\">",
-	    Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"DAT_N RIGHT_MIDDLE COLOR%u\"",Gbl.RowEvenOdd);
    fprintf (Gbl.F.Out,"%u",NumTimesPresent);
    Tbl_EndCell ();
 
@@ -3545,16 +3532,15 @@ static void Att_ListAttEventsForAStd (unsigned NumUsr,struct UsrData *UsrDat)
    NumUsr++;
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE COLOR%u\">",
-	    UsrDat->Accepted ? "DAT_N" :
-			       "DAT",
-	    Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE COLOR%u\"",
+		      UsrDat->Accepted ? "DAT_N" :
+					 "DAT",
+		      Gbl.RowEvenOdd);
    fprintf (Gbl.F.Out,"%u:",NumUsr);
    Tbl_EndCell ();
 
    /***** Show student's photo *****/
-   fprintf (Gbl.F.Out,"<td colspan=\"2\" class=\"RIGHT_MIDDLE COLOR%u\">",
-            Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("colspan=\"2\" class=\"RIGHT_MIDDLE COLOR%u\"",Gbl.RowEvenOdd);
    ShowPhoto = Pho_ShowingUsrPhotoIsAllowed (UsrDat,PhotoURL);
    Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
 				        NULL,
@@ -3562,21 +3548,20 @@ static void Att_ListAttEventsForAStd (unsigned NumUsr,struct UsrData *UsrDat)
    Tbl_EndCell ();
 
    /***** Write user's ID ******/
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE COLOR%u\">",
-            Gbl.RowEvenOdd);
+   Tbl_StartCellAttr ("class=\"LEFT_MIDDLE COLOR%u\"",Gbl.RowEvenOdd);
    Tbl_StartTable ();
    Tbl_StartRow ();
 
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE\">",
-	    UsrDat->Accepted ? "DAT_N" :
-			       "DAT");
+   Tbl_StartCellAttr ("class=\"%s LEFT_MIDDLE\"",
+		      UsrDat->Accepted ? "DAT_N" :
+					 "DAT");
    ID_WriteUsrIDs (UsrDat,NULL);
    Tbl_EndCell ();
 
    /***** Write student's name *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE\">",
-	    UsrDat->Accepted ? "DAT_SMALL_N" :
-			       "DAT_SMALL");
+   Tbl_StartCellAttr ("class=\"%s LEFT_MIDDLE\"",
+		      UsrDat->Accepted ? "DAT_SMALL_N" :
+					 "DAT_SMALL");
    fprintf (Gbl.F.Out,"%s",UsrDat->Surname1);
    if (UsrDat->Surname2[0])
       fprintf (Gbl.F.Out," %s",UsrDat->Surname2);
@@ -3610,20 +3595,18 @@ static void Att_ListAttEventsForAStd (unsigned NumUsr,struct UsrData *UsrDat)
 
 	 Tbl_PutEmptyColouredCells (1);
 
-	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
-		  Present ? "DAT_GREEN" :
-			    "DAT_RED",
-	          Gbl.RowEvenOdd);
+	 Tbl_StartCellAttr ("class=\"%s RIGHT_TOP COLOR%u\"",
+			     Present ? "DAT_GREEN" :
+				       "DAT_RED",
+			     Gbl.RowEvenOdd);
 	 fprintf (Gbl.F.Out,"%u:",NumAttEvent + 1);
 	 Tbl_EndCell ();
 
-	 fprintf (Gbl.F.Out,"<td class=\"BT%u\">",
-	          Gbl.RowEvenOdd);
+	 Tbl_StartCellAttr ("class=\"BT%u\"",Gbl.RowEvenOdd);
          Att_PutCheckOrCross (Present);
 	 Tbl_EndCell ();
 
-	 fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_TOP COLOR%u\">",
-	          Gbl.RowEvenOdd);
+	 Tbl_StartCellAttr ("class=\"DAT LEFT_TOP COLOR%u\"",Gbl.RowEvenOdd);
 	 fprintf (Gbl.F.Out,"<span id=\"att_date_start_%u_%u\"></span>"
 	                    "<br />%s"
 			    "<script type=\"text/javascript\">"
@@ -3646,12 +3629,10 @@ static void Att_ListAttEventsForAStd (unsigned NumUsr,struct UsrData *UsrDat)
 
 	    Tbl_PutEmptyColouredCells (2);
 
-	    fprintf (Gbl.F.Out,"<td class=\"BT%u\">",
-	             Gbl.RowEvenOdd);
+	    Tbl_StartCellAttr ("class=\"BT%u\"",Gbl.RowEvenOdd);
 	    Tbl_EndCell ();
 
-	    fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE COLOR%u\">",
-	             Gbl.RowEvenOdd);
+	    Tbl_StartCellAttr ("class=\"DAT LEFT_MIDDLE COLOR%u\"",Gbl.RowEvenOdd);
 	    fprintf (Gbl.F.Out,"<dl>");
 	    if (ShowCommentStd)
 	      {
diff --git a/swad_banner.c b/swad_banner.c
index 4782f76a..8050a237 100644
--- a/swad_banner.c
+++ b/swad_banner.c
@@ -422,12 +422,13 @@ static void Ban_ListBannersForEdition (void)
 
       /* Put icon to remove banner */
       Tbl_StartRow ();
-      fprintf (Gbl.F.Out,"<td class=\"BM\">");
+
+      Tbl_StartCellAttr ("class=\"BM\"");
       Ico_PutContextualIconToRemove (ActRemBan,Ban_PutParamBanCodToEdit);
       Tbl_EndCell ();
 
       /* Put icon to hide/show banner */
-      fprintf (Gbl.F.Out,"<td class=\"BM\">");
+      Tbl_StartCellAttr ("class=\"BM\"");
       if (Ban->Hidden)
          Ico_PutContextualIconToUnhide (ActShoBan,Anchor,Ban_PutParamBanCodToEdit);
       else
@@ -435,16 +436,16 @@ static void Ban_ListBannersForEdition (void)
       Tbl_EndCell ();
 
       /* Banner code */
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE\">",
-               Ban->Hidden ? "DAT_LIGHT" :
-        	             "DAT");
+      Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE\"",
+			 Ban->Hidden ? "DAT_LIGHT" :
+				       "DAT");
       Lay_StartArticle (Anchor);
       fprintf (Gbl.F.Out,"%ld",Ban->BanCod);
       Lay_EndArticle ();
       Tbl_EndCell ();
 
       /* Banner short name */
-      fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">");
+      Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
       Frm_StartForm (ActRenBanSho);
       Ban_PutParamBanCodToEdit ();
       fprintf (Gbl.F.Out,"<input type=\"text\" name=\"ShortName\""
@@ -456,7 +457,7 @@ static void Ban_ListBannersForEdition (void)
       Tbl_EndCell ();
 
       /* Banner full name */
-      fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">");
+      Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
       Frm_StartForm (ActRenBanFul);
       Ban_PutParamBanCodToEdit ();
       fprintf (Gbl.F.Out,"<input type=\"text\" name=\"FullName\""
@@ -468,7 +469,7 @@ static void Ban_ListBannersForEdition (void)
       Tbl_EndCell ();
 
       /* Banner image */
-      fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">");
+      Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
       Frm_StartForm (ActChgBanImg);
       Ban_PutParamBanCodToEdit ();
       fprintf (Gbl.F.Out,"<input type=\"text\" name=\"Img\""
@@ -479,7 +480,7 @@ static void Ban_ListBannersForEdition (void)
       Tbl_EndCell ();
 
       /* Banner WWW */
-      fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">");
+      Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
       Frm_StartForm (ActChgBanWWW);
       Ban_PutParamBanCodToEdit ();
       fprintf (Gbl.F.Out,"<input type=\"url\" name=\"WWW\""
@@ -489,6 +490,7 @@ static void Ban_ListBannersForEdition (void)
                Cns_MAX_CHARS_WWW,Ban->WWW,Gbl.Form.Id);
       Frm_EndForm ();
       Tbl_EndCell ();
+
       Tbl_EndRow ();
 
       /* Free anchor string */
@@ -865,15 +867,18 @@ static void Ban_PutFormToCreateBanner (void)
 
    /***** Banner code *****/
    Tbl_StartRow ();
-   fprintf (Gbl.F.Out,"<td class=\"BM\">");
+
+   Tbl_StartCellAttr ("class=\"BM\"");
    Tbl_EndCell ();
-   fprintf (Gbl.F.Out,"<td class=\"BM\">");
+
+   Tbl_StartCellAttr ("class=\"BM\"");
    Tbl_EndCell ();
+
    Tbl_PutEmptyCells (1);
 
    /***** Banner short name *****/
-   fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">"
-                      "<input type=\"text\" name=\"ShortName\""
+   Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<input type=\"text\" name=\"ShortName\""
                       " maxlength=\"%u\" value=\"%s\""
                       " class=\"INPUT_SHORT_NAME\""
                       " required=\"required\" />",
@@ -881,8 +886,8 @@ static void Ban_PutFormToCreateBanner (void)
    Tbl_EndCell ();
 
    /***** Banner full name *****/
-   fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">"
-                      "<input type=\"text\" name=\"FullName\""
+   Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<input type=\"text\" name=\"FullName\""
                       " maxlength=\"%u\" value=\"%s\""
                       " class=\"INPUT_FULL_NAME\""
                       " required=\"required\" />",
@@ -890,21 +895,22 @@ static void Ban_PutFormToCreateBanner (void)
    Tbl_EndCell ();
 
    /***** Banner image *****/
-   fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">"
-                      "<input type=\"text\" name=\"Img\""
+   Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<input type=\"text\" name=\"Img\""
                       " size=\"12\" maxlength=\"%u\" value=\"%s\""
                       " required=\"required\" />",
             Ban_MAX_CHARS_IMAGE,Ban_EditingBan->Img);
    Tbl_EndCell ();
 
    /***** Banner WWW *****/
-   fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\">"
-                      "<input type=\"url\" name=\"WWW\""
+   Tbl_StartCellAttr ("class=\"CENTER_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<input type=\"url\" name=\"WWW\""
                       " maxlength=\"%u\" value=\"%s\""
                       " class=\"INPUT_WWW\""
                       " required=\"required\" />",
             Cns_MAX_CHARS_WWW,Ban_EditingBan->WWW);
    Tbl_EndCell ();
+
    Tbl_EndRow ();
 
    /***** End table, send button and end box *****/
diff --git a/swad_centre.c b/swad_centre.c
index 0a9c3639..c6fbea26 100644
--- a/swad_centre.c
+++ b/swad_centre.c
@@ -209,16 +209,15 @@ void Ctr_SeeCtrWithPendingDegs (void)
 
          /* Centre logo and full name */
          Tbl_StartRow ();
-         fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE %s\">",
-                  BgColor);
+
+         Tbl_StartCellAttr ("class=\"LEFT_MIDDLE %s\"",BgColor);
          Ctr_DrawCentreLogoAndNameWithLink (&Ctr,ActSeeDeg,
                                             "DAT_NOBR","CENTER_MIDDLE");
          Tbl_EndCell ();
 
          /* Number of pending degrees (row[1]) */
-         fprintf (Gbl.F.Out,"<td class=\"DAT RIGHT_MIDDLE %s\">"
-	                    "%s",
-                  BgColor,row[1]);
+         Tbl_StartCellAttr ("class=\"DAT RIGHT_MIDDLE %s\"",BgColor);
+	 fprintf (Gbl.F.Out,"%s",row[1]);
          Tbl_EndCell ();
 
          Gbl.RowEvenOdd = 1 - Gbl.RowEvenOdd;
@@ -409,13 +408,14 @@ static void Ctr_Configuration (bool PrintView)
 
    /***** Institution *****/
    Tbl_StartRow ();
-   fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE\">"
-		      "<label for=\"OthInsCod\" class=\"%s\">%s:</label>",
+
+   Tbl_StartCellAttr ("class=\"RIGHT_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<label for=\"OthInsCod\" class=\"%s\">%s:</label>",
 	    The_ClassFormInBox[Gbl.Prefs.Theme],
 	    Txt_Institution);
    Tbl_EndCell ();
-   fprintf (Gbl.F.Out,"<td class=\"DAT_N LEFT_MIDDLE\">");
 
+   Tbl_StartCellAttr ("class=\"DAT_N LEFT_MIDDLE\"");
    if (!PrintView &&
        Gbl.Usrs.Me.Role.Logged == Rol_SYS_ADM)
       // Only system admins can move a centre to another institution
@@ -445,19 +445,20 @@ static void Ctr_Configuration (bool PrintView)
      }
    else	// I can not move centre to another institution
       fprintf (Gbl.F.Out,"%s",Gbl.Hierarchy.Ins.FullName);
-
    Tbl_EndCell ();
+
    Tbl_EndRow ();
 
    /***** Centre full name *****/
    Tbl_StartRow ();
-   fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE\">"
-		      "<label for=\"FullName\" class=\"%s\">%s:</label>",
+
+   Tbl_StartCellAttr ("class=\"RIGHT_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<label for=\"FullName\" class=\"%s\">%s:</label>",
 	    The_ClassFormInBox[Gbl.Prefs.Theme],
 	    Txt_Centre);
    Tbl_EndCell ();
-   fprintf (Gbl.F.Out,"<td class=\"DAT_N LEFT_MIDDLE\">");
 
+   Tbl_StartCellAttr ("class=\"DAT_N LEFT_MIDDLE\"");
    if (!PrintView &&
        Gbl.Usrs.Me.Role.Logged >= Rol_INS_ADM)
       // Only institution admins and system admins can edit centre full name
@@ -477,17 +478,19 @@ static void Ctr_Configuration (bool PrintView)
    else	// I can not edit centre full name
       fprintf (Gbl.F.Out,"%s",Gbl.Hierarchy.Ctr.FullName);
    Tbl_EndCell ();
+
    Tbl_EndRow ();
 
    /***** Centre short name *****/
    Tbl_StartRow ();
-   fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE\">"
-		      "<label for=\"ShortName\" class=\"%s\">%s:</label>",
+
+   Tbl_StartCellAttr ("class=\"RIGHT_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<label for=\"ShortName\" class=\"%s\">%s:</label>",
 	    The_ClassFormInBox[Gbl.Prefs.Theme],
 	    Txt_Short_name);
    Tbl_EndCell ();
-   fprintf (Gbl.F.Out,"<td class=\"DAT_N LEFT_MIDDLE\">");
 
+   Tbl_StartCellAttr ("class=\"DAT_N LEFT_MIDDLE\"");
    if (!PrintView &&
        Gbl.Usrs.Me.Role.Logged >= Rol_INS_ADM)
       // Only institution admins and system admins can edit centre short name
@@ -507,19 +510,19 @@ static void Ctr_Configuration (bool PrintView)
    else	// I can not edit centre short name
       fprintf (Gbl.F.Out,"%s",Gbl.Hierarchy.Ctr.ShrtName);
    Tbl_EndCell ();
+
    Tbl_EndRow ();
 
    /***** Place *****/
    Plc.PlcCod = Gbl.Hierarchy.Ctr.PlcCod;
    Plc_GetDataOfPlaceByCod (&Plc);
    Tbl_StartRow ();
-   fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE\">"
-		      "%s:",
-	    The_ClassFormInBox[Gbl.Prefs.Theme],
-	    Txt_Place);
-   Tbl_EndCell ();
-   fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE\">");
 
+   Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
+   fprintf (Gbl.F.Out,"%s:",Txt_Place);
+   Tbl_EndCell ();
+
+   Tbl_StartCellAttr ("class=\"DAT LEFT_MIDDLE\"");
    if (!PrintView &&
        Gbl.Usrs.Me.Role.Logged >= Rol_CTR_ADM)
       // Only centre admins, institution admins and system admins
@@ -555,17 +558,19 @@ static void Ctr_Configuration (bool PrintView)
    else	// I can not change centre place
       fprintf (Gbl.F.Out,"%s",Plc.FullName);
    Tbl_EndCell ();
+
    Tbl_EndRow ();
 
    /***** Centre WWW *****/
    Tbl_StartRow ();
-   fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE\">"
-		      "<label for=\"WWW\" class=\"%s\">%s:</label>",
+
+   Tbl_StartCellAttr ("class=\"RIGHT_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<label for=\"WWW\" class=\"%s\">%s:</label>",
 	    The_ClassFormInBox[Gbl.Prefs.Theme],
 	    Txt_Web);
    Tbl_EndCell ();
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE\">");
 
+   Tbl_StartCellAttr ("class=\"LEFT_MIDDLE\"");
    if (!PrintView &&
        Gbl.Usrs.Me.Role.Logged >= Rol_CTR_ADM)
       // Only centre admins, institution admins and system admins
@@ -591,17 +596,18 @@ static void Ctr_Configuration (bool PrintView)
 	       Gbl.Hierarchy.Ctr.WWW,
 	       Gbl.Hierarchy.Ctr.WWW);
    Tbl_EndCell ();
+
    Tbl_EndRow ();
 
    /***** Shortcut to the centre *****/
    Tbl_StartRow ();
-   fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE\">"
-		      "%s:",
-	    The_ClassFormInBox[Gbl.Prefs.Theme],
-	    Txt_Shortcut);
+
+   Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
+   fprintf (Gbl.F.Out,"%s:",Txt_Shortcut);
    Tbl_EndCell ();
-   fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE\">"
-		      "<a href=\"%s/%s?ctr=%ld\" class=\"DAT\" target=\"_blank\">"
+
+   Tbl_StartCellAttr ("class=\"DAT LEFT_MIDDLE\"");
+   fprintf (Gbl.F.Out,"<a href=\"%s/%s?ctr=%ld\" class=\"DAT\" target=\"_blank\">"
 		      "%s/%s?ctr=%ld"
 		      "</a>",
 	    Cfg_URL_SWAD_CGI,
@@ -611,6 +617,7 @@ static void Ctr_Configuration (bool PrintView)
 	    Lan_STR_LANG_ID[Gbl.Prefs.Language],
 	    Gbl.Hierarchy.Ctr.CtrCod);
    Tbl_EndCell ();
+
    Tbl_EndRow ();
 
    if (PrintView)
@@ -618,13 +625,11 @@ static void Ctr_Configuration (bool PrintView)
       /***** QR code with link to the centre *****/
       Tbl_StartRow ();
 
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE\">"
-			 "%s:",
-	       The_ClassFormInBox[Gbl.Prefs.Theme],
-	       Txt_QR_code);
+      Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
+      fprintf (Gbl.F.Out,"%s:",Txt_QR_code);
       Tbl_EndCell ();
 
-      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE\">");
+      Tbl_StartCellAttr ("class=\"DAT LEFT_MIDDLE\"");
       QR_LinkTo (250,"ctr",Gbl.Hierarchy.Ctr.CtrCod);
       Tbl_EndCell ();
 
@@ -634,27 +639,26 @@ static void Ctr_Configuration (bool PrintView)
      {
       /***** Number of users who claim to belong to this centre *****/
       Tbl_StartRow ();
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE\">"
-			 "%s:",
-	       The_ClassFormInBox[Gbl.Prefs.Theme],
-	       Txt_Users_of_the_centre);
+
+      Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
+      fprintf (Gbl.F.Out,"%s:",Txt_Users_of_the_centre);
       Tbl_EndCell ();
-      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE\">"
-			 "%u",
-	       Usr_GetNumUsrsWhoClaimToBelongToCtr (Gbl.Hierarchy.Ctr.CtrCod));
+
+      Tbl_StartCellAttr ("class=\"DAT LEFT_MIDDLE\"");
+      fprintf (Gbl.F.Out,"%u",Usr_GetNumUsrsWhoClaimToBelongToCtr (Gbl.Hierarchy.Ctr.CtrCod));
       Tbl_EndCell ();
+
       Tbl_EndRow ();
 
       /***** Number of degrees *****/
       Tbl_StartRow ();
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE\">"
-			 "%s:",
-	       The_ClassFormInBox[Gbl.Prefs.Theme],
-	       Txt_Degrees);
+
+      Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
+      fprintf (Gbl.F.Out,"%s:",Txt_Degrees);
       Tbl_EndCell ();
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE\">");
 
       /* Form to go to see degrees of this centre */
+      Tbl_StartCellAttr ("class=\"LEFT_MIDDLE\"");
       Frm_StartFormGoTo (ActSeeDeg);
       Ctr_PutParamCtrCod (Gbl.Hierarchy.Ctr.CtrCod);
       snprintf (Gbl.Title,sizeof (Gbl.Title),
@@ -664,21 +668,21 @@ static void Ctr_Configuration (bool PrintView)
       fprintf (Gbl.F.Out,"%u</a>",
 	       Deg_GetNumDegsInCtr (Gbl.Hierarchy.Ctr.CtrCod));
       Frm_EndForm ();
-
       Tbl_EndCell ();
+
       Tbl_EndRow ();
 
       /***** Number of courses *****/
       Tbl_StartRow ();
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_MIDDLE\">"
-			 "%s:",
-	       The_ClassFormInBox[Gbl.Prefs.Theme],
-	       Txt_Courses);
+
+      Tbl_StartCellAttr ("class=\"%s RIGHT_MIDDLE\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
+      fprintf (Gbl.F.Out,"%s:",Txt_Courses);
       Tbl_EndCell ();
-      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE\">"
-			 "%u",
-	       Crs_GetNumCrssInCtr (Gbl.Hierarchy.Ctr.CtrCod));
+
+      Tbl_StartCellAttr ("class=\"DAT LEFT_MIDDLE\"");
+      fprintf (Gbl.F.Out,"%u",Crs_GetNumCrssInCtr (Gbl.Hierarchy.Ctr.CtrCod));
       Tbl_EndCell ();
+
       Tbl_EndRow ();
 
       /***** Number of users in courses of this centre *****/
diff --git a/swad_changelog.h b/swad_changelog.h
index c7ed5826..057a7d9d 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -487,7 +487,7 @@ enscript -2 --landscape --color --file-align=2 --highlight --line-numbers -o - *
 En OpenSWAD:
 ps2pdf source.ps destination.pdf
 */
-#define Log_PLATFORM_VERSION	"SWAD 19.31.18 (2019-10-07)"
+#define Log_PLATFORM_VERSION	"SWAD 19.31.19 (2019-10-07)"
 #define CSS_FILE		"swad19.29.css"
 #define JS_FILE			"swad19.30.js"
 /*
@@ -495,6 +495,7 @@ ps2pdf source.ps destination.pdf
 // TODO: Un TFG preasignado sin estudiante tiene que salir un triángulo amarillo
 // TODO: Hacer un nuevo rol en los TFG: tutor externo (profesor de áreas no vinculadas con el centro, profesionales de empresas, etc.)
 
+	Version 19.31.19: Oct 07, 2019	Code refactoring in HTML tables. (247211 lines)
 	Version 19.31.18: Oct 07, 2019	Code refactoring in HTML tables. (247239 lines)
 	Version 19.31.17: Oct 07, 2019	Code refactoring in HTML tables. (247221 lines)
 	Version 19.31.16: Oct 07, 2019	Code refactoring in HTML tables. (247185 lines)