From ef7765e47e1468dd89530efeb4d09bd9a0b7c43f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Antonio=20Ca=C3=B1as=20Vargas?= <acanas@ugr.es>
Date: Thu, 3 Sep 2015 17:14:30 +0200
Subject: [PATCH] Version 14.125.1

---
 swad_changelog.h   |   5 +-
 swad_indicator.c   | 152 ++++++++++++----------------
 swad_mark.c        |  26 +++--
 swad_photo.c       |  15 ++-
 swad_profile.c     |  31 +++---
 swad_record.c      |  12 +--
 swad_statistic.c   |  70 ++++++-------
 swad_survey.c      |  64 +++++-------
 swad_syllabus.c    |  24 ++---
 swad_test.c        | 239 +++++++++++++++++++--------------------------
 swad_test_import.c |  25 ++---
 swad_user.c        | 129 ++++++++++--------------
 12 files changed, 335 insertions(+), 457 deletions(-)

diff --git a/swad_changelog.h b/swad_changelog.h
index 9ec0c012f..3b7d6cc99 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -103,12 +103,13 @@
 /****************************** Public constants *****************************/
 /*****************************************************************************/
 
-#define Log_PLATFORM_VERSION	"SWAD 14.125 (2015/09/03)"
+#define Log_PLATFORM_VERSION	"SWAD 14.125.1 (2015/09/03)"
 
 // Number of lines (includes comments but not blank lines) has been got with the following command:
 // nl swad*.c swad*.h css/swad*.css py/swad*.py js/swad*.js soap/swad*.h sql/swad*.sql | tail -1
 /*
-        Version 14.125:   Sep 03, 2015	Changes in styles. (? lines)
+        Version 14.125.1: Sep 03, 2015	Changes in styles. (184399 lines)
+        Version 14.125:   Sep 03, 2015	Changes in styles. (184521 lines)
         Version 14.124.10:Sep 02, 2015	Changes in styles. (184571 lines)
         Version 14.124.9: Sep 02, 2015	Changes in styles. (184584 lines)
         Version 14.124.8: Sep 02, 2015	Changes in styles. (184635 lines)
diff --git a/swad_indicator.c b/swad_indicator.c
index ef4b95ab7..086be8f0a 100644
--- a/swad_indicator.c
+++ b/swad_indicator.c
@@ -1021,254 +1021,224 @@ static void Ind_ShowTableOfCoursesWithIndicators (Ind_IndicatorsLayout_t Indicat
                NumTchs = Usr_GetNumUsrsInCrs (Rol_TEACHER,CrsCod);
 
                fprintf (Gbl.F.Out,"<tr>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"DAT_SMALL LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"DAT_SMALL LEFT_MIDDLE COLOR%u\">"
                                   "<a href=\"%s/?crs=%ld&amp;act=%ld\" target=\"_blank\">"
                                   "%s/?crs=%ld&amp;act=%ld"
                                   "</a>"
                                   "</td>"
 
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%u"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%u"
                                   "</td>"
 
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%u"
                                   "</td>"
 
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
 
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%u"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%lu"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%lu"
                                   "</td>"
 
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%u"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%u"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%u"
                                   "</td>"
 
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%lu"
                                   "</td>"
-                                  "<td class=\"%s RIGHT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s RIGHT_MIDDLE COLOR%u\">"
                                   "%lu"
                                   "</td>"
 
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s CENTER_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s CENTER_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
-                                  "<td class=\"%s LEFT_MIDDLE\""
-                                  " style=\"background-color:%s;\">"
+                                  "<td class=\"%s LEFT_MIDDLE COLOR%u\">"
                                   "%s"
                                   "</td>"
                                   "</tr>",
                         Indicators.CourseAllOK ? "DAT_SMALL_GREEN" :
                         (Indicators.CoursePartiallyOK ? "DAT_SMALL" :
                                                         "DAT_SMALL_RED"),
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         row[0],
                         Indicators.CourseAllOK ? "DAT_SMALL_GREEN" :
                         (Indicators.CoursePartiallyOK ? "DAT_SMALL" :
                                                         "DAT_SMALL_RED"),
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         row[1],
                         Indicators.CourseAllOK ? "DAT_SMALL_GREEN" :
                         (Indicators.CoursePartiallyOK ? "DAT_SMALL" :
                                                         "DAT_SMALL_RED"),
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         row[3],
-                        Gbl.ColorRows[Gbl.RowEvenOdd],Cfg_HTTPS_URL_SWAD_CGI,CrsCod,Act_Actions[ActReqStaCrs].ActCod,
-                                                      Cfg_HTTPS_URL_SWAD_CGI,CrsCod,Act_Actions[ActReqStaCrs].ActCod,
+                        Gbl.RowEvenOdd,Cfg_HTTPS_URL_SWAD_CGI,CrsCod,Act_Actions[ActReqStaCrs].ActCod,
+                                       Cfg_HTTPS_URL_SWAD_CGI,CrsCod,Act_Actions[ActReqStaCrs].ActCod,
 
                         NumTchs != 0 ? "DAT_SMALL_GREEN" :
                                        "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         NumTchs,
                         NumStds != 0 ? "DAT_SMALL_GREEN" :
                                        "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         NumStds,
 
                         Indicators.CourseAllOK ? "DAT_SMALL_GREEN" :
                         (Indicators.CoursePartiallyOK ? "DAT_SMALL" :
                                                         "DAT_SMALL_RED"),
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.CountIndicators,
 
-                        "DAT_SMALL_GREEN",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_GREEN",Gbl.RowEvenOdd,
                         Indicators.ThereIsSyllabus ? Txt_YES :
                                                      "",
-                        "DAT_SMALL_RED",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_RED",Gbl.RowEvenOdd,
                         Indicators.ThereIsSyllabus ? "" :
                                                      Txt_NO,
                         (Indicators.SyllabusLecSrc != Inf_INFO_SRC_NONE) ? "DAT_SMALL_GREEN" :
                                                                            "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Txt_INFO_SRC_SHORT_TEXT[Indicators.SyllabusLecSrc],
                         (Indicators.SyllabusPraSrc != Inf_INFO_SRC_NONE) ? "DAT_SMALL_GREEN" :
                                                                            "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Txt_INFO_SRC_SHORT_TEXT[Indicators.SyllabusPraSrc],
                         (Indicators.TeachingGuideSrc != Inf_INFO_SRC_NONE) ? "DAT_SMALL_GREEN" :
                                                                              "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Txt_INFO_SRC_SHORT_TEXT[Indicators.TeachingGuideSrc],
 
-                        "DAT_SMALL_GREEN",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_GREEN",Gbl.RowEvenOdd,
                         Indicators.ThereAreAssignments ? Txt_YES :
                                                          "",
-                        "DAT_SMALL_RED",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_RED",Gbl.RowEvenOdd,
                         Indicators.ThereAreAssignments ? "" :
                                                          Txt_NO,
                         (Indicators.NumAssignments != 0) ? "DAT_SMALL_GREEN" :
                                                            "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumAssignments,
                         (Indicators.NumFilesAssignments != 0) ? "DAT_SMALL_GREEN" :
                                                                 "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumFilesAssignments,
                         (Indicators.NumFilesWorks != 0) ? "DAT_SMALL_GREEN" :
                                                           "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumFilesWorks,
 
-                        "DAT_SMALL_GREEN",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_GREEN",Gbl.RowEvenOdd,
                         Indicators.ThereIsOnlineTutoring ? Txt_YES :
                                                            "",
-                        "DAT_SMALL_RED",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_RED",Gbl.RowEvenOdd,
                         Indicators.ThereIsOnlineTutoring ? "" :
                                                            Txt_NO,
                         (Indicators.NumThreads != 0) ? "DAT_SMALL_GREEN" :
                                                        "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumThreads,
                         (Indicators.NumPosts != 0) ? "DAT_SMALL_GREEN" :
                                                      "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumPosts,
                         (Indicators.NumMsgsSentByTchs != 0) ? "DAT_SMALL_GREEN" :
                                                               "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumMsgsSentByTchs,
 
-                        "DAT_SMALL_GREEN",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_GREEN",Gbl.RowEvenOdd,
                         Indicators.ThereAreMaterials ? Txt_YES :
                                                        "",
-                        "DAT_SMALL_RED",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_RED",Gbl.RowEvenOdd,
                         Indicators.ThereAreMaterials ? "" :
                                                        Txt_NO,
                         (Indicators.NumFilesInDownloadZones != 0) ? "DAT_SMALL_GREEN" :
                                                                     "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumFilesInDownloadZones,
                         (Indicators.NumFilesInCommonZones != 0) ? "DAT_SMALL_GREEN" :
                                                                   "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Indicators.NumFilesInCommonZones,
 
-                        "DAT_SMALL_GREEN",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_GREEN",Gbl.RowEvenOdd,
                         Indicators.ThereIsAssessment ? Txt_YES :
                                                        "",
-                        "DAT_SMALL_RED",Gbl.ColorRows[Gbl.RowEvenOdd],
+                        "DAT_SMALL_RED",Gbl.RowEvenOdd,
                         Indicators.ThereIsAssessment ? "" :
                                                        Txt_NO,
                         (Indicators.AssessmentSrc != Inf_INFO_SRC_NONE) ? "DAT_SMALL_GREEN" :
                                                                           "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Txt_INFO_SRC_SHORT_TEXT[Indicators.AssessmentSrc],
                         (Indicators.TeachingGuideSrc != Inf_INFO_SRC_NONE) ? "DAT_SMALL_GREEN" :
                                                                              "DAT_SMALL_RED",
-                        Gbl.ColorRows[Gbl.RowEvenOdd],
+                        Gbl.RowEvenOdd,
                         Txt_INFO_SRC_SHORT_TEXT[Indicators.TeachingGuideSrc]);
                break;
               }
diff --git a/swad_mark.c b/swad_mark.c
index 4447cc3b2..06cafa386 100644
--- a/swad_mark.c
+++ b/swad_mark.c
@@ -112,20 +112,19 @@ void Mrk_GetAndWriteNumRowsHeaderAndFooter (Brw_FileType_t FileType,
    struct MarksProperties Marks;
 
    if (FileType == Brw_IS_FOLDER)
-      fprintf (Gbl.F.Out,"<td style=\"background-color:%s;\"></td>"
-                         "<td style=\"background-color:%s;\"></td>",
-               Gbl.ColorRows[Gbl.RowEvenOdd],
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"COLOR%u\"></td>"
+                         "<td class=\"COLOR%u\"></td>",
+               Gbl.RowEvenOdd,
+               Gbl.RowEvenOdd);
    else	// File or link
      {
       /***** Get number of rows in header or footer *****/
       Mrk_GetNumRowsHeaderAndFooter (&Marks);
 
       /***** Write the number of rows of header *****/
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                 " style=\"background-color:%s;\">",
+      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
                The_ClassFormNoWrap[Gbl.Prefs.Theme],
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+               Gbl.RowEvenOdd);
 
       if (Gbl.CurrentCrs.Grps.GrpCod > 0)	// Group zone
         {
@@ -138,22 +137,21 @@ void Mrk_GetAndWriteNumRowsHeaderAndFooter (Brw_FileType_t FileType,
       fprintf (Gbl.F.Out,"&nbsp;%s: "
                          "<input type=\"text\" name=\"%s\""
                          " size=\"1\" maxlength=\"5\" value=\"%u\""
-                         " class=\"%s\" style=\"background-color:%s\""
+                         " class=\"%s COLOR%u\""
                          " onchange=\"javascript:document.getElementById('%s').submit();\" />",
                Txt_TABLE_Header,
                Mrk_HeadOrFootStr[Brw_HEADER],Marks.Header,
                Gbl.FileBrowser.InputStyle,
-               Gbl.ColorRows[Gbl.RowEvenOdd],
+               Gbl.RowEvenOdd,
                Gbl.FormId);
       Brw_ParamListFiles (FileType,PathInTree,FileName);
       Act_FormEnd ();
       fprintf (Gbl.F.Out,"</td>");
 
       /***** Write the number of rows of footer *****/
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                 " style=\"background-color:%s;\">",
+      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
                The_ClassFormNoWrap[Gbl.Prefs.Theme],
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+               Gbl.RowEvenOdd);
 
       if (Gbl.CurrentCrs.Grps.GrpCod > 0)	// Group zone
         {
@@ -166,12 +164,12 @@ void Mrk_GetAndWriteNumRowsHeaderAndFooter (Brw_FileType_t FileType,
       fprintf (Gbl.F.Out,"&nbsp;%s: "
                          "<input type=\"text\" name=\"%s\""
                          " size=\"1\" maxlength=\"5\" value=\"%u\""
-                         " class=\"%s\" style=\"background-color:%s\""
+                         " class=\"%s COLOR%u\""
                          " onchange=\"javascript:document.getElementById('%s').submit();\" />",
                Txt_TABLE_Footer,
                Mrk_HeadOrFootStr[Brw_FOOTER],Marks.Footer,
                Gbl.FileBrowser.InputStyle,
-               Gbl.ColorRows[Gbl.RowEvenOdd],
+               Gbl.RowEvenOdd,
                Gbl.FormId);
       Brw_ParamListFiles (FileType,PathInTree,FileName);
       Act_FormEnd ();
diff --git a/swad_photo.c b/swad_photo.c
index ac17540f0..0af6c7fcf 100644
--- a/swad_photo.c
+++ b/swad_photo.c
@@ -1999,16 +1999,14 @@ static void Pho_ShowOrPrintListDegrees (Pho_AvgPhotoSeeOrPrint_t SeeOrPrint)
 
       /***** Show logo and name of this degree *****/
       fprintf (Gbl.F.Out,"<tr>"
-                         "<td class=\"DAT RIGHT_MIDDLE\""
-                         " style=\"background-color:%s;\">"
+                         "<td class=\"DAT RIGHT_MIDDLE COLOR%u\">"
                          "%u"
                          "</td>",
-               Gbl.ColorRows[Gbl.RowEvenOdd],++NumDegsNotEmpty);
+               Gbl.RowEvenOdd,++NumDegsNotEmpty);
 
       /***** Show logo and name of this degree *****/
-      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE\""
-	                 " style=\"background-color:%s;\">",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_MIDDLE COLOR%u\">",
+               Gbl.RowEvenOdd);
       if (SeeOrPrint == Pho_DEGREES_SEE)
          fprintf (Gbl.F.Out,"<a href=\"%s\" title=\"%s\" class=\"DAT\" target=\"_blank\">",
                   Deg.WWW,Deg.FullName);
@@ -2026,9 +2024,8 @@ static void Pho_ShowOrPrintListDegrees (Pho_AvgPhotoSeeOrPrint_t SeeOrPrint)
         {
          /***** Show average photo of students belonging to this degree *****/
          Pho_GetNumStdsInDegree (Deg.DegCod,Sex,&NumStds,&NumStdsWithPhoto);
-         fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\""
-                            " style=\"background-color:%s;\">",
-                  Gbl.ColorRows[Gbl.RowEvenOdd]);
+         fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE COLOR%u\">",
+                  Gbl.RowEvenOdd);
          if (Gbl.Usrs.Listing.WithPhotos)
             Pho_ShowDegreeAvgPhotoAndStat (&Deg,SeeOrPrint,Sex,NumStds,NumStdsWithPhoto,&DateAvgPhoto);
          else
diff --git a/swad_profile.c b/swad_profile.c
index febe71c32..d0cf843ef 100644
--- a/swad_profile.c
+++ b/swad_profile.c
@@ -1318,10 +1318,13 @@ void Prf_ShowRankingFigure (const char *Query)
 	 /***** Show row *****/
 	 fprintf (Gbl.F.Out,"<tr>");
          Prf_ShowUsrInRanking (&UsrDat,Rank);
-	 fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE\" style=\"height:40px;"
-	                    " background-color:%s;\">%ld</td>"
+	 fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE COLOR%u\""
+	                    " style=\"height:40px;\">"
+	                    "%ld"
+	                    "</td>"
 			    "</tr>",
-		  Gbl.ColorRows[Gbl.RowEvenOdd],Figure);
+		  Gbl.RowEvenOdd,
+		  Figure);
 	}
 
       fprintf (Gbl.F.Out,"</table>");
@@ -1460,9 +1463,9 @@ void Prf_GetAndShowRankingClicksPerDay (void)
 	 /***** Show row *****/
 	 fprintf (Gbl.F.Out,"<tr>");
 	 Prf_ShowUsrInRanking (&UsrDat,Rank);
-	 fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE\" style=\"height:40px;"
-	                    " background-color:%s;\">",
-	          Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"RIGHT_MIDDLE COLOR%u\""
+	                    " style=\"height:40px;\">",
+	          Gbl.RowEvenOdd);
 	 Str_WriteFloatNum (NumClicksPerDay);
 	 fprintf (Gbl.F.Out,"</td>"
 			    "</tr>");
@@ -1489,15 +1492,15 @@ void Prf_ShowUsrInRanking (const struct UsrData *UsrDat,unsigned Rank)
    char PhotoURL[PATH_MAX+1];
    bool Visible = Pri_ShowIsAllowed (UsrDat->ProfileVisibility,UsrDat->UsrCod);
 
-   fprintf (Gbl.F.Out,"<td class=\"RANK RIGHT_MIDDLE\" style=\"height:40px;"
-	              " background-color:%s;\">"
+   fprintf (Gbl.F.Out,"<td class=\"RANK RIGHT_MIDDLE COLOR%u\""
+	              " style=\"height:40px;\">"
 		      "#%u"
 		      "</td>"
-                      "<td style=\"width:28px; height:40px;"
-	              " background-color:%s;\">",
-	    Gbl.ColorRows[Gbl.RowEvenOdd],
+                      "<td class=\"COLOR%u\""
+                      " style=\"width:28px; height:40px;\">",
+	    Gbl.RowEvenOdd,
 	    Rank,
-            Gbl.ColorRows[Gbl.RowEvenOdd]);
+            Gbl.RowEvenOdd);
 
    /***** Check if I can see the public profile *****/
    if (Visible)
@@ -1510,8 +1513,8 @@ void Prf_ShowUsrInRanking (const struct UsrData *UsrDat,unsigned Rank)
      }
 
    fprintf (Gbl.F.Out,"</td>"
-		      "<td style=\"height:40px; background-color:%s;\">",
-            Gbl.ColorRows[Gbl.RowEvenOdd]);
+		      "<td class=\"COLOR%u\" style=\"height:40px;\">",
+            Gbl.RowEvenOdd);
 
    /***** Put form to go to public profile *****/
    if (Visible)
diff --git a/swad_record.c b/swad_record.c
index b09683bcb..e727f1685 100644
--- a/swad_record.c
+++ b/swad_record.c
@@ -1567,12 +1567,12 @@ void Rec_ShowCrsRecord (Rec_RecordViewType_t TypeOfView,struct UsrData *UsrDat)
 
          /* Name of the field */
          fprintf (Gbl.F.Out,"<tr>"
-                            "<td class=\"%s LEFT_TOP\""
-                            " style=\"width:%upx; background-color:%s;\">"
+                            "<td class=\"%s LEFT_TOP COLOR%u\""
+                            " style=\"width:%upx;\">"
                             "%s:",
                   ICanEdit ? The_ClassForm[Gbl.Prefs.Theme] :
                 	     "DAT_REC_SMALL",
-                  Col1Width,Gbl.ColorRows[Gbl.RowEvenOdd],
+                  Gbl.RowEvenOdd,Col1Width,
                   Gbl.CurrentCrs.Records.LstFields.Lst[NumField].Name);
          if (TypeOfView == Rec_RECORD_LIST)
             fprintf (Gbl.F.Out,"<span class=\"DAT_SMALL\"> (%s)</span>",
@@ -1589,9 +1589,9 @@ void Rec_ShowCrsRecord (Rec_RecordViewType_t TypeOfView,struct UsrData *UsrDat)
             ThisFieldHasText = false;
 
          /***** Write form, text, or nothing depending on the user's role and the visibility of the field... */
-         fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP\" style=\"width:%upx;"
-                            " background-color:%s;\">",
-                  ClassData,Col2Width,Gbl.ColorRows[Gbl.RowEvenOdd]);
+         fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP COLOR%u\""
+                            " style=\"width:%upx;\">",
+                  ClassData,Gbl.RowEvenOdd,Col2Width);
          if (ICanEdit)	// Show with form
            {
             fprintf (Gbl.F.Out,"<textarea name=\"Field%ld\" rows=\"%u\""
diff --git a/swad_statistic.c b/swad_statistic.c
index 0ce328c50..75ab6a19d 100644
--- a/swad_statistic.c
+++ b/swad_statistic.c
@@ -1613,39 +1613,34 @@ static void Sta_ShowDetailedAccessesList (unsigned long NumRows,MYSQL_RES *mysql
 
       /* Write the number of row */
       fprintf (Gbl.F.Out,"<tr>"
-	                 "<td class=\"LOG RIGHT_TOP\""
-	                 " style=\"background-color:%s;\">"
+	                 "<td class=\"LOG RIGHT_TOP COLOR%u\">"
 	                 "%ld&nbsp;"
 	                 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],NumRow);
+	       Gbl.RowEvenOdd,NumRow);
 
       /* Write the user's ID if user is a student */
-      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP COLOR%u\">",
+	       Gbl.RowEvenOdd);
       ID_WriteUsrIDs (&UsrDat,(RoleFromLog == Rol_STUDENT));
       fprintf (Gbl.F.Out,"&nbsp;</td>");
 
       /* Write the first name and the surnames */
-      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP COLOR%u\">"
 	                 "%s&nbsp;"
 	                 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],UsrDat.FullName);
+	       Gbl.RowEvenOdd,UsrDat.FullName);
 
       /* Write the user's role */
-      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP COLOR%u\">"
 	                 "%s&nbsp;"
 	                 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
+	       Gbl.RowEvenOdd,
 	       RoleFromLog < Rol_NUM_ROLES ? Txt_ROLES_SINGUL_Abc[RoleFromLog][UsrDat.Sex] :
 		                             "?");
 
       /* Write the date (in row[3] is the date in YYYYMMDDHHMMSS format) */
-      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP COLOR%u\">",
+	       Gbl.RowEvenOdd);
       Dat_WriteDate (row[3]);
       fprintf (Gbl.F.Out,"&nbsp;");
       Dat_WriteHourMinute (&row[3][8]);
@@ -1656,22 +1651,19 @@ static void Sta_ShowDetailedAccessesList (unsigned long NumRows,MYSQL_RES *mysql
       if (sscanf (row[4],"%ld",&ActCod) != 1)
 	 Lay_ShowErrorAndExit ("Wrong action code.");
       if (ActCod >= 0)
-         fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP\""
-                            " style=\"background-color:%s;\">"
+         fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP COLOR%u\">"
                             "%s&nbsp;"
                             "</td>",
-	          Gbl.ColorRows[Gbl.RowEvenOdd],
+	          Gbl.RowEvenOdd,
 	          Act_GetActionTextFromDB (ActCod,ActTxt));
       else
-         fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP\""
-                            " style=\"background-color:%s;\">"
+         fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP COLOR%u\">"
                             "?&nbsp;"
                             "</td>",
-	          Gbl.ColorRows[Gbl.RowEvenOdd]);
+	          Gbl.RowEvenOdd);
       /* Write the comments of the access */
-      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP\""
-	                 " style=\"background-color:%s;\">",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP COLOR%u\">",
+               Gbl.RowEvenOdd);
       Sta_WriteLogComments (LogCod);
       fprintf (Gbl.F.Out,"</td>"
 	                 "</tr>");
@@ -1770,16 +1762,14 @@ static void Sta_ShowNumAccessesPerUsr (unsigned long NumRows,MYSQL_RES *mysql_re
 
       /* Write the number of row */
       fprintf (Gbl.F.Out,"<tr>"
-	                 "<td class=\"LOG RIGHT_TOP\""
-	                 " style=\"background-color:%s;\">"
+	                 "<td class=\"LOG RIGHT_TOP COLOR%u\">"
 	                 "%ld&nbsp;"
 	                 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],NumRow);
+	       Gbl.RowEvenOdd,NumRow);
 
       /* Show the photo */
-      fprintf (Gbl.F.Out,"<td class=\"CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"CENTER_TOP COLOR%u\">",
+	       Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowUsrPhotoIsAllowed (&UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (&UsrDat,ShowPhoto ? PhotoURL :
                                             NULL,
@@ -1787,25 +1777,22 @@ static void Sta_ShowNumAccessesPerUsr (unsigned long NumRows,MYSQL_RES *mysql_re
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write the user's ID if user is a student in current course */
-      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP COLOR%u\">",
+	       Gbl.RowEvenOdd);
       ID_WriteUsrIDs (&UsrDat,(UsrDat.RoleInCurrentCrsDB == Rol_STUDENT));
       fprintf (Gbl.F.Out,"&nbsp;</td>");
 
       /* Write the name and the surnames */
-      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP COLOR%u\">"
 	                 "%s&nbsp;"
 	                 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],UsrDat.FullName);
+	       Gbl.RowEvenOdd,UsrDat.FullName);
 
       /* Write user's role */
-      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"LOG CENTER_TOP COLOR%u\">"
 	                 "%s&nbsp;"
 	                 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
+	       Gbl.RowEvenOdd,
 	       Txt_ROLES_SINGUL_Abc[UsrDat.RoleInCurrentCrsDB][UsrDat.Sex]);
 
       /* Write the number of clicks */
@@ -1820,9 +1807,8 @@ static void Sta_ShowNumAccessesPerUsr (unsigned long NumRows,MYSQL_RES *mysql_re
         }
       else
          BarWidth = 0;
-      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP\""
-	                 " style=\"background-color:%s;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"LOG LEFT_TOP COLOR%u\">",
+	       Gbl.RowEvenOdd);
       if (BarWidth)
 	 fprintf (Gbl.F.Out,"<img src=\"%s/%c1x14.gif\""
 	                    " alt=\"\" title=\"\""
diff --git a/swad_survey.c b/swad_survey.c
index d7652de8f..fe979b461 100644
--- a/swad_survey.c
+++ b/swad_survey.c
@@ -345,15 +345,14 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
 
    /***** Start date/time *****/
    fprintf (Gbl.F.Out,"<tr>"
-                      "<td class=\"%s LEFT_TOP\"",
+                      "<td class=\"%s LEFT_TOP",
             Svy.Status.Visible ? (Svy.Status.Open ? "DATE_GREEN" :
         	                                    "DATE_RED") :
                                  (Svy.Status.Open ? "DATE_GREEN_LIGHT" :
                                                     "DATE_RED_LIGHT"));
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,">"
+      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"\">"
 	              "%02u/%02u/%02u<br />"
 	              "%02u:%02u h"
 	              "</td>",
@@ -364,15 +363,14 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
 	    Svy.DateTimes[Svy_START_TIME].Time.Minute);
 
    /***** End date/time *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP\"",
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP",
             Svy.Status.Visible ? (Svy.Status.Open ? "DATE_GREEN" :
         	                                    "DATE_RED") :
                                  (Svy.Status.Open ? "DATE_GREEN_LIGHT" :
                                                     "DATE_RED_LIGHT"));
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,">"
+      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"\">"
 	              "%02u/%02u/%02u<br />"
 	              "%02u:%02u h"
 	              "</td>",
@@ -383,11 +381,10 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
 	    Svy.DateTimes[Svy_END_TIME  ].Time.Minute);
 
    /***** Survey title *****/
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\"");
+   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP");
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,">");
+      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"\">");
 
    /* Put form to view survey */
    Act_FormStart (ActSeeOneSvy);
@@ -413,22 +410,20 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
             Svy.NumUsrs);
 
    /***** Status of the survey *****/
-   fprintf (Gbl.F.Out,"<td rowspan=\"2\" class=\"LEFT_TOP\"");
+   fprintf (Gbl.F.Out,"<td rowspan=\"2\" class=\"LEFT_TOP");
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,">");
+      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"\">");
    Svy_WriteStatus (&Svy);
    fprintf (Gbl.F.Out,"</td>"
 	              "</tr>");
 
    /***** Write second row of data of this survey *****/
    fprintf (Gbl.F.Out,"<tr>"
-	              "<td colspan=\"2\" class=\"LEFT_TOP\"");
+	              "<td colspan=\"2\" class=\"LEFT_TOP");
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,">");
+      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
+   fprintf (Gbl.F.Out,"\">");
 
    /* Author of the survey */
    Svy_WriteAuthor (&Svy);
@@ -438,10 +433,9 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
       Svy_PutFormsToRemEditOneSvy (Svy.SvyCod,Svy.Status.Visible);
 
    fprintf (Gbl.F.Out,"</td>"
-                      "<td style=\"text-align:left; vertical-align:top;");
+                      "<td class=\"LEFT_TOP");
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," background-color:%s;",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out," COLOR%u",Gbl.RowEvenOdd);
    fprintf (Gbl.F.Out,"\">");
 
    /* Scope of the survey */
@@ -511,8 +505,7 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
      }
    else
      {
-      fprintf (Gbl.F.Out," style=\"background-color:%s;\">",
-		  Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out," class=\"COLOR%u\">",Gbl.RowEvenOdd);
 
       /* Possible button to answer this survey */
       if (Svy.Status.ICanAnswer)
@@ -2987,8 +2980,7 @@ static void Svy_ListSvyQuestions (struct Survey *Svy,struct SurveyQuestion *SvyQ
          if (Svy->Status.ICanEdit)
            {
             /* Write icon to remove the question */
-            fprintf (Gbl.F.Out,"<td class=\"BT%u\">",
-                     Gbl.RowEvenOdd);
+            fprintf (Gbl.F.Out,"<td class=\"BT%u\">",Gbl.RowEvenOdd);
             Act_FormStart (ActRemSvyQst);
             Svy_PutParamSvyCod (Svy->SvyCod);
             Svy_PutParamQstCod (SvyQst->QstCod);
@@ -2999,8 +2991,7 @@ static void Svy_ListSvyQuestions (struct Survey *Svy,struct SurveyQuestion *SvyQ
             fprintf (Gbl.F.Out,"</td>");
 
             /* Write icon to edit the question */
-            fprintf (Gbl.F.Out,"<td class=\"BT%u\">",
-                     Gbl.RowEvenOdd);
+            fprintf (Gbl.F.Out,"<td class=\"BT%u\">",Gbl.RowEvenOdd);
             Act_FormStart (ActEdiOneSvyQst);
             Svy_PutParamSvyCod (Svy->SvyCod);
             Svy_PutParamQstCod (SvyQst->QstCod);
@@ -3016,18 +3007,16 @@ static void Svy_ListSvyQuestions (struct Survey *Svy,struct SurveyQuestion *SvyQ
          /* Write index of question inside survey (row[1]) */
          if (sscanf (row[1],"%u",&(SvyQst->QstInd)) != 1)
             Lay_ShowErrorAndExit ("Error: wrong question index.");
-         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-                            " style=\"background-color:%s;\">"
+         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">"
                             "%u"
                             "</td>",
-                  Gbl.ColorRows[Gbl.RowEvenOdd],SvyQst->QstInd+1);
+                  Gbl.RowEvenOdd,SvyQst->QstInd+1);
 
          /* Write the question type (row[2]) */
          SvyQst->AnswerType = Svy_ConvertFromStrAnsTypDBToAnsTyp (row[2]);
-         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-                            " style=\"background-color:%s;\">"
+         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">"
                             "%s",
-	          Gbl.ColorRows[Gbl.RowEvenOdd],
+	          Gbl.RowEvenOdd,
                   Txt_SURVEY_STR_ANSWER_TYPES[SvyQst->AnswerType]);
 
          /* Write the stem (row[3]) */
@@ -3114,12 +3103,11 @@ static void Svy_WriteQstStem (const char *Stem,const char *TextStyle)
                      HeadingRigorousHTML,LengthHeading,false);
 
    /* Write the stem */
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP\""
-	              " style=\"background-color:%s;\">"
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP COLOR%u\">"
                       "<div style=\"text-align:justify;\">"
                       "<tt>%s</tt>"
                       "</div>",
-	    TextStyle,Gbl.ColorRows[Gbl.RowEvenOdd],HeadingRigorousHTML);
+	    TextStyle,Gbl.RowEvenOdd,HeadingRigorousHTML);
 
    /* Free memory allocated for the stem */
    free ((void *) HeadingRigorousHTML);
diff --git a/swad_syllabus.c b/swad_syllabus.c
index a6867c95d..6e526e90c 100644
--- a/swad_syllabus.c
+++ b/swad_syllabus.c
@@ -547,9 +547,9 @@ static void Syl_ShowRowSyllabus (Inf_InfoType_t InfoType,unsigned NumItem,int Le
    if (Gbl.CurrentCrs.Syllabus.EditionIsActive)
      {
       if (NewItem)
-         fprintf (Gbl.F.Out,"<td colspan=\"5\" style=\"background-color:%s;\">"
+         fprintf (Gbl.F.Out,"<td colspan=\"5\" class=\"COLOR%u\">"
                             "</td>",
-	          Gbl.ColorRows[Gbl.RowEvenOdd]);
+	          Gbl.RowEvenOdd);
       else
 	{
 	 /***** Icon to remove the row *****/
@@ -681,32 +681,32 @@ static void Syl_ShowRowSyllabus (Inf_InfoType_t InfoType,unsigned NumItem,int Le
      }
 
    if (Gbl.CurrentCrs.Syllabus.EditionIsActive)
-      Syl_PutFormItemSyllabus (InfoType,NewItem,NumItem,Level,CodItem,Text,Gbl.ColorRows[Gbl.RowEvenOdd]);
+      Syl_PutFormItemSyllabus (InfoType,NewItem,NumItem,Level,CodItem,Text,
+                               Gbl.ColorRows[Gbl.RowEvenOdd]);
    else
      {
       /***** Indent depending on the level *****/
       if (Level > 1)
-	 fprintf (Gbl.F.Out,"<td colspan=\"%d\" style=\"background-color:%s;\">"
+	 fprintf (Gbl.F.Out,"<td colspan=\"%d\" class=\"COLOR%u\">"
 	                    "</td>",
-                  Level - 1,Gbl.ColorRows[Gbl.RowEvenOdd]);
+                  Level - 1,Gbl.RowEvenOdd);
 
       /***** Code of the item *****/
-      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                 " style=\"width:%dpx; background-color:%s;\">",
-               StyleSyllabus[Level],
-               Level * Syl_WIDTH_NUM_SYLLABUS,Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\""
+	                 " style=\"width:%dpx;\">",
+               StyleSyllabus[Level],Gbl.RowEvenOdd,
+               Level * Syl_WIDTH_NUM_SYLLABUS);
       if (Level == 1)
 	 fprintf (Gbl.F.Out,"&nbsp;");
       fprintf (Gbl.F.Out,"%s&nbsp;</td>",StrItemCod);
 
       /***** Text of the item *****/
-      fprintf (Gbl.F.Out,"<td colspan=\"%d\" class=\"%s LEFT_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td colspan=\"%d\" class=\"%s LEFT_TOP COLOR%u\">"
                          "%s"
                          "</td>",
                LstItemsSyllabus.NumLevels - Level + 1,
                StyleSyllabus[Level],
-               Gbl.ColorRows[Gbl.RowEvenOdd],
+               Gbl.RowEvenOdd,
                Text);
      }
 
diff --git a/swad_test.c b/swad_test.c
index 6f5858c54..c0bba109b 100644
--- a/swad_test.c
+++ b/swad_test.c
@@ -894,20 +894,18 @@ static void Tst_ShowTstResultAfterAssess (long TstCod,unsigned *NumQstsNotBlank,
       else
 	 /***** Question does not exists *****/
          fprintf (Gbl.F.Out,"<tr>"
-	                    "<td class=\"DAT_LIGHT RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">"
+	                    "<td class=\"DAT_LIGHT RIGHT_TOP COLOR%u\">"
 	                    "%u.&nbsp;"
 	                    "</td>"
-	                    "<td style=\"background-color:%s;\">"
+	                    "<td class=\"COLOR%u\">"
 	                    "</td>"
-	                    "<td class=\"DAT_LIGHT LEFT_TOP\""
-	                    " style=\"background-color:%s;\">"
+	                    "<td class=\"DAT_LIGHT LEFT_TOP COLOR%u\">"
 	                    "%s"
 	                    "</td>"
 	                    "</tr>",
-                  Gbl.ColorRows[Gbl.RowEvenOdd],NumQst + 1,
-                  Gbl.ColorRows[Gbl.RowEvenOdd],
-                  Gbl.ColorRows[Gbl.RowEvenOdd],Txt_Question_removed);
+                  Gbl.RowEvenOdd,NumQst + 1,
+                  Gbl.RowEvenOdd,
+                  Gbl.RowEvenOdd,Txt_Question_removed);
 
       /***** Free structure that stores the query result *****/
       DB_FreeMySQLResult (&mysql_res);
@@ -936,26 +934,23 @@ static void Tst_WriteQstAndAnsExam (unsigned NumQst,long QstCod,MYSQL_ROW row,
 
    /***** Write number of question *****/
    fprintf (Gbl.F.Out,"<tr>"
-	              "<td class=\"DAT_N RIGHT_TOP\""
-	              " style=\"background-color:%s;\">"
+	              "<td class=\"DAT_N RIGHT_TOP COLOR%u\">"
 	              "%u.&nbsp;"
 	              "</td>",
-            Gbl.ColorRows[Gbl.RowEvenOdd],
+            Gbl.RowEvenOdd,
             NumQst + 1);
 
    /***** Write answer type (row[2]) *****/
    Gbl.Test.AnswerType = Tst_ConvertFromStrAnsTypDBToAnsTyp (row[2]);
-   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL LEFT_TOP\""
-	              " style=\"background-color:%s;\">"
+   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL LEFT_TOP COLOR%u\">"
 	              "%s&nbsp;"
 	              "</td>",
-            Gbl.ColorRows[Gbl.RowEvenOdd],
+            Gbl.RowEvenOdd,
             Txt_TST_STR_ANSWER_TYPES[Gbl.Test.AnswerType]);
 
    /***** Write stem (row[4]), answers depending on shuffle (row[3]) and feedback (row[5]) *****/
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\""
-	              " style=\"background-color:%s;\">",
-            Gbl.ColorRows[Gbl.RowEvenOdd]);
+   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP COLOR%u\">",
+            Gbl.RowEvenOdd);
    Tst_WriteQstStem (row[4],"TEST_EXA");
    if (Gbl.CurrentAct == ActSeeTst)
       Tst_WriteAnswersOfAQstSeeExam (NumQst,QstCod,(Str_ConvertToUpperLetter (row[3][0]) == 'Y'));
@@ -2483,8 +2478,7 @@ static void Tst_ListOneOrMoreQuestionsToEdit (unsigned long NumRows,MYSQL_RES *m
 
       /* Write icon to remove the question */
       fprintf (Gbl.F.Out,"<tr>"
-                         "<td class=\"BT%u\">",
-	       Gbl.RowEvenOdd);
+                         "<td class=\"BT%u\">",Gbl.RowEvenOdd);
       Act_FormStart (ActRemTstQst);
       Sta_WriteParamsDatesSeeAccesses ();
       Tst_WriteParamEditQst ();
@@ -2497,8 +2491,7 @@ static void Tst_ListOneOrMoreQuestionsToEdit (unsigned long NumRows,MYSQL_RES *m
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write icon to edit the question */
-      fprintf (Gbl.F.Out,"<td class=\"BT%u\">",
-	       Gbl.RowEvenOdd);
+      fprintf (Gbl.F.Out,"<td class=\"BT%u\">",Gbl.RowEvenOdd);
       Act_FormStart (ActEdiOneTstQst);
       Par_PutHiddenParamLong ("QstCod",QstCod);
       fprintf (Gbl.F.Out,"<input type=\"image\" src=\"%s/edit16x16.gif\""
@@ -2510,48 +2503,42 @@ static void Tst_ListOneOrMoreQuestionsToEdit (unsigned long NumRows,MYSQL_RES *m
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write number of question */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">"
 	                 "%lu&nbsp;"
 	                 "</td>",
-               Gbl.ColorRows[Gbl.RowEvenOdd],NumRow + 1);
+               Gbl.RowEvenOdd,NumRow + 1);
 
       /* Write question code */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">"
 	                 "%ld&nbsp;"
 	                 "</td>",
-               Gbl.ColorRows[Gbl.RowEvenOdd],QstCod);
+               Gbl.RowEvenOdd,QstCod);
 
       /* Write the date (row[1] has the date in format YYYYMMDDHHMMSS) */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">",
+               Gbl.RowEvenOdd);
       Dat_WriteDate (row[1]);
       fprintf (Gbl.F.Out,"<br />");
       Dat_WriteHourMinute (&row[1][8]);
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write the question tags */
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\""
-	                 " style=\"background-color:%s;\">",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP COLOR%u\">",
+               Gbl.RowEvenOdd);
       Tst_GetAndWriteTagsQst (QstCod);
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write the question type (row[2]) */
       Gbl.Test.AnswerType = Tst_ConvertFromStrAnsTypDBToAnsTyp (row[2]);
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">"
 	                 "%s&nbsp;"
 	                 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
+	       Gbl.RowEvenOdd,
                Txt_TST_STR_ANSWER_TYPES[Gbl.Test.AnswerType]);
 
       /* Write if shuffle is enabled (row[3]) */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">",
+	       Gbl.RowEvenOdd);
       if (Gbl.Test.AnswerType == Tst_ANS_UNIQUE_CHOICE ||
           Gbl.Test.AnswerType == Tst_ANS_MULTIPLE_CHOICE)
         {
@@ -2573,9 +2560,8 @@ static void Tst_ListOneOrMoreQuestionsToEdit (unsigned long NumRows,MYSQL_RES *m
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write the stem (row[4]), the feedback (row[5]) and the answers */
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\""
-	                 " style=\"background-color:%s;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP COLOR%u\">",
+	       Gbl.RowEvenOdd);
       Tst_WriteQstStem (row[4],"TEST_EDI");
       Tst_WriteQstFeedback (row[5],"TEST_EDI_LIGHT");
       Tst_WriteAnswersOfAQstEdit (QstCod);
@@ -2596,16 +2582,14 @@ static void Tst_ListOneOrMoreQuestionsToEdit (unsigned long NumRows,MYSQL_RES *m
       setlocale (LC_NUMERIC,"es_ES.utf8");	// Return to spanish system (TODO: this should be internationalized!!!!!!!)
 
       /* Write number of times this question has been answered */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">"
 	                 "%lu"
 	                 "</td>",
-               Gbl.ColorRows[Gbl.RowEvenOdd],NumHitsThisQst);
+               Gbl.RowEvenOdd,NumHitsThisQst);
 
       /* Write average score */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">",
+               Gbl.RowEvenOdd);
       if (NumHitsThisQst)
          fprintf (Gbl.F.Out,"%.2f",TotalScoreThisQst /
                                    (double) NumHitsThisQst);
@@ -2614,17 +2598,15 @@ static void Tst_ListOneOrMoreQuestionsToEdit (unsigned long NumRows,MYSQL_RES *m
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write number of times this question has been answered (not blank) */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">"
 	                 "%lu"
 	                 "</td>",
-               Gbl.ColorRows[Gbl.RowEvenOdd],
+               Gbl.RowEvenOdd,
                NumHitsNotBlankThisQst);
 
       /* Write average score (not blank) */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
-	                 " style=\"background-color:%s;\">",
-               Gbl.ColorRows[Gbl.RowEvenOdd]);
+      fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP COLOR%u\">",
+               Gbl.RowEvenOdd);
       if (NumHitsNotBlankThisQst)
          fprintf (Gbl.F.Out,"%.2f",TotalScoreThisQst /
                                    (double) NumHitsNotBlankThisQst);
@@ -6231,9 +6213,8 @@ static void Tst_ShowResultsOfTestExams (struct UsrData *UsrDat)
             fprintf (Gbl.F.Out,"<tr>");
 
          /* Write date and time (row[2] holds date and time in YYYYMMDDHHMMSS format) */
-	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">",
-	          ClassDat,Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
+	          ClassDat,Gbl.RowEvenOdd);
 	 Dat_WriteDate (row[2]);
 	 fprintf (Gbl.F.Out,"&nbsp;");
 	 Dat_WriteHourMinute (&row[2][8]);
@@ -6269,33 +6250,29 @@ static void Tst_ShowResultsOfTestExams (struct UsrData *UsrDat)
          setlocale (LC_NUMERIC,"es_ES.utf8");	// Return to spanish system (TODO: this should be internationalized!!!!!!!)
 
          /* Write number of questions */
-	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">",
-	          ClassDat,Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
+	          ClassDat,Gbl.RowEvenOdd);
 	 if (ICanViewExam)
 	    fprintf (Gbl.F.Out,"%u",NumQstsInThisExam);
 	 fprintf (Gbl.F.Out,"</td>");
 
          /* Write number of questions not blank */
-	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">",
-	          ClassDat,Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
+	          ClassDat,Gbl.RowEvenOdd);
 	 if (ICanViewExam)
 	    fprintf (Gbl.F.Out,"%u",NumQstsNotBlankInThisExam);
 	 fprintf (Gbl.F.Out,"</td>");
 
 	 /* Write score */
-	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">",
-	          ClassDat,Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
+	          ClassDat,Gbl.RowEvenOdd);
 	 if (ICanViewScore)
 	    fprintf (Gbl.F.Out,"%.2lf",ScoreInThisExam);
 	 fprintf (Gbl.F.Out,"</td>");
 
          /* Write average score per question */
-	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">",
-	          ClassDat,Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
+	          ClassDat,Gbl.RowEvenOdd);
 	 if (ICanViewScore)
 	    fprintf (Gbl.F.Out,"%.2lf",
 		     NumQstsInThisExam ? ScoreInThisExam / (double) NumQstsInThisExam :
@@ -6303,9 +6280,8 @@ static void Tst_ShowResultsOfTestExams (struct UsrData *UsrDat)
 	 fprintf (Gbl.F.Out,"</td>");
 
          /* Write score over Tst_SCORE_MAX */
-	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">",
-	          ClassDat,Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP COLOR%u\">",
+	          ClassDat,Gbl.RowEvenOdd);
 	 if (ICanViewScore)
 	    fprintf (Gbl.F.Out,"%.2lf",
 		     NumQstsInThisExam ? ScoreInThisExam * Tst_SCORE_MAX / (double) NumQstsInThisExam :
@@ -6313,9 +6289,8 @@ static void Tst_ShowResultsOfTestExams (struct UsrData *UsrDat)
 	 fprintf (Gbl.F.Out,"</td>");
 
 	 /* Link to show this exam */
-	 fprintf (Gbl.F.Out,"<td class=\"RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">",
-		  Gbl.ColorRows[Gbl.RowEvenOdd]);
+	 fprintf (Gbl.F.Out,"<td class=\"RIGHT_TOP COLOR%u\">",
+		  Gbl.RowEvenOdd);
 	 if (ICanViewExam)
 	   {
 	    Act_FormStart (Gbl.CurrentAct == ActSeeMyTstExa ? ActSeeOneTstExaMe :
@@ -6341,51 +6316,46 @@ static void Tst_ShowResultsOfTestExams (struct UsrData *UsrDat)
 	                                        Gbl.Test.Config.FeedbackType != Tst_FEEDBACK_NOTHING);
 
       fprintf (Gbl.F.Out,"<tr>"
-			 "<td class=\"DAT_N RIGHT_TOP\""
-			 " style=\"background-color:%s;"
-			 " border-style:solid none none none;"
+			 "<td class=\"DAT_N RIGHT_TOP COLOR%u\""
+			 " style=\"border-style:solid none none none;"
 			 " border-width:1px;\">"
 			 "%s: %u"
 			 "</td>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
+	       Gbl.RowEvenOdd,
 	       Txt_Visible_exams,NumExamsVisibleByTchs);
 
       /* Write total number of questions */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP\""
-	                 " style=\"background-color:%s;"
-	                 " border-style:solid none none none;"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP COLOR%u\""
+	                 " style=\"border-style:solid none none none;"
 			 " border-width:1px;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+	       Gbl.RowEvenOdd);
       if (NumExamsVisibleByTchs)
          fprintf (Gbl.F.Out,"%u",NumTotalQsts);
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write total number of questions not blank */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP\""
-	                 " style=\"background-color:%s;"
-			 " border-style:solid none none none;"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP COLOR%u\""
+	                 " style=\"order-style:solid none none none;"
 			 " border-width:1px;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+	       Gbl.RowEvenOdd);
       if (NumExamsVisibleByTchs)
          fprintf (Gbl.F.Out,"%u",NumTotalQstsNotBlank);
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write total score */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP\""
-	                 " style=\"background-color:%s;"
-			 " border-style:solid none none none;"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP COLOR%u\""
+	                 " style=\"border-style:solid none none none;"
 			 " border-width:1px;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+	       Gbl.RowEvenOdd);
       if (ICanViewScore)
          fprintf (Gbl.F.Out,"%.2lf",TotalScoreOfAllExams);
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write average score per question */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP\""
-	                 " style=\"background-color:%s;"
-			 " border-style:solid none none none;"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP COLOR%u\""
+	                 " style=\"border-style:solid none none none;"
 			 " border-width:1px;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+	       Gbl.RowEvenOdd);
       if (ICanViewScore)
          fprintf (Gbl.F.Out,"%.2lf",
                   NumTotalQsts ? TotalScoreOfAllExams / (double) NumTotalQsts :
@@ -6393,11 +6363,10 @@ static void Tst_ShowResultsOfTestExams (struct UsrData *UsrDat)
       fprintf (Gbl.F.Out,"</td>");
 
       /* Write score over Tst_SCORE_MAX */
-      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP\""
-	                 " style=\"background-color:%s;"
-			 " border-style:solid none none none;"
+      fprintf (Gbl.F.Out,"<td class=\"DAT_N RIGHT_TOP COLOR%u\""
+	                 " style=\"border-style:solid none none none;"
 			 " border-width:1px;\">",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+	       Gbl.RowEvenOdd);
       if (ICanViewScore)
          fprintf (Gbl.F.Out,"%.2lf",
                   NumTotalQsts ? TotalScoreOfAllExams * Tst_SCORE_MAX / (double) NumTotalQsts :
@@ -6405,26 +6374,26 @@ static void Tst_ShowResultsOfTestExams (struct UsrData *UsrDat)
       fprintf (Gbl.F.Out,"</td>");
 
       /* Last cell */
-      fprintf (Gbl.F.Out,"<td style=\"background-color:%s;\"></td>"
+      fprintf (Gbl.F.Out,"<td class=\"COLOR%u\"></td>"
 			 "</tr>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+	       Gbl.RowEvenOdd);
      }
    else
-      fprintf (Gbl.F.Out,"<td style=\"background-color:%s;\"></td>"
-	                 "<td style=\"background-color:%s;\"></td>"
-	                 "<td style=\"background-color:%s;\"></td>"
-	                 "<td style=\"background-color:%s;\"></td>"
-	                 "<td style=\"background-color:%s;\"></td>"
-	                 "<td style=\"background-color:%s;\"></td>"
-	                 "<td style=\"background-color:%s;\"></td>"
+      fprintf (Gbl.F.Out,"<td class=\"COLOR%u\"></td>"
+	                 "<td class=\"COLOR%u\"></td>"
+	                 "<td class=\"COLOR%u\"></td>"
+	                 "<td class=\"COLOR%u\"></td>"
+	                 "<td class=\"COLOR%u\"></td>"
+	                 "<td class=\"COLOR%u\"></td>"
+	                 "<td class=\"COLOR%u\"></td>"
 	                 "</tr>",
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
-	       Gbl.ColorRows[Gbl.RowEvenOdd],
-	       Gbl.ColorRows[Gbl.RowEvenOdd]);
+	       Gbl.RowEvenOdd,
+	       Gbl.RowEvenOdd,
+	       Gbl.RowEvenOdd,
+	       Gbl.RowEvenOdd,
+	       Gbl.RowEvenOdd,
+	       Gbl.RowEvenOdd,
+	       Gbl.RowEvenOdd);
 
    /***** Free structure that stores the query result *****/
    DB_FreeMySQLResult (&mysql_res);
@@ -6445,9 +6414,8 @@ static void Tst_ShowDataUsr (struct UsrData *UsrDat,unsigned NumExams)
    fprintf (Gbl.F.Out,"<td ");
    if (NumExams)
       fprintf (Gbl.F.Out,"rowspan=\"%u\"",NumExams + 1);
-   fprintf (Gbl.F.Out," class=\"LEFT_TOP\""
-	              " style=\"background-color:%s;\">",
-	    Gbl.ColorRows[Gbl.RowEvenOdd]);
+   fprintf (Gbl.F.Out," class=\"LEFT_TOP COLOR%u\">",
+	    Gbl.RowEvenOdd);
    ShowPhoto = Pho_ShowUsrPhotoIsAllowed (UsrDat,PhotoURL);
    Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                 	                NULL,
@@ -6458,11 +6426,10 @@ static void Tst_ShowDataUsr (struct UsrData *UsrDat,unsigned NumExams)
    fprintf (Gbl.F.Out,"<td ");
    if (NumExams)
       fprintf (Gbl.F.Out,"rowspan=\"%u\"",NumExams + 1);
-   fprintf (Gbl.F.Out," class=\"LEFT_TOP\""
-	              " style=\"background-color:%s;\">",
-	    Gbl.ColorRows[Gbl.RowEvenOdd]);
+   fprintf (Gbl.F.Out," class=\"LEFT_TOP COLOR%u\">",
+	    Gbl.RowEvenOdd);
    Act_FormStart (UsrDat->RoleInCurrentCrsDB == Rol_STUDENT ? ActSeeRecOneStd :
-	                                                           ActSeeRecOneTch);
+	                                                      ActSeeRecOneTch);
    Usr_PutParamUsrCodEncrypted (UsrDat->EncryptedUsrCod);
    Act_LinkFormSubmit (UsrDat->FullName,"MSG_AUT");
 
@@ -6707,19 +6674,17 @@ static void Tst_ShowExamTstResult (const char *TstTime)
 	 if (ThisQuestionHasBeenEdited)
 	    /***** Question has been edited *****/
 	    fprintf (Gbl.F.Out,"<tr>"
-			       "<td class=\"DAT_LIGHT RIGHT_TOP\""
-			       " style=\"background-color:%s;\">"
+			       "<td class=\"DAT_LIGHT RIGHT_TOP COLOR%u\">"
 			       "%u.&nbsp;"
 			       "</td>"
-			       "<td style=\"background-color:%s;\"></td>"
-			       "<td class=\"DAT_LIGHT LEFT_TOP\""
-			       " style=\"background-color:%s;\">"
+			       "<td class=\"COLOR%u\"></td>"
+			       "<td class=\"DAT_LIGHT LEFT_TOP COLOR%u\">"
 			       "%s"
 			       "</td>"
 			       "</tr>",
-		     Gbl.ColorRows[Gbl.RowEvenOdd],NumQst + 1,
-		     Gbl.ColorRows[Gbl.RowEvenOdd],
-		     Gbl.ColorRows[Gbl.RowEvenOdd],Txt_Question_modified);
+		     Gbl.RowEvenOdd,NumQst + 1,
+		     Gbl.RowEvenOdd,
+		     Gbl.RowEvenOdd,Txt_Question_modified);
 	 else
 	   {
 	    /***** Get the code of question (row[0]) *****/
@@ -6735,19 +6700,17 @@ static void Tst_ShowExamTstResult (const char *TstTime)
       else
 	 /***** Question does not exists *****/
          fprintf (Gbl.F.Out,"<tr>"
-	                    "<td class=\"DAT_LIGHT RIGHT_TOP\""
-	                    " style=\"background-color:%s;\">"
+	                    "<td class=\"DAT_LIGHT RIGHT_TOP COLOR%u\">"
 	                    "%u.&nbsp;"
 	                    "</td>"
-	                    "<td style=\"background-color:%s;\"></td>"
-	                    "<td class=\"DAT_LIGHT LEFT_TOP\""
-	                    " style=\"background-color:%s;\">"
+	                    "<td class=\"COLOR%u\"></td>"
+	                    "<td class=\"DAT_LIGHT LEFT_TOP COLOR%u\">"
 	                    "%s"
 	                    "</td>"
 	                    "</tr>",
-                  Gbl.ColorRows[Gbl.RowEvenOdd],NumQst + 1,
-                  Gbl.ColorRows[Gbl.RowEvenOdd],
-                  Gbl.ColorRows[Gbl.RowEvenOdd],Txt_Question_removed);
+                  Gbl.RowEvenOdd,NumQst + 1,
+                  Gbl.RowEvenOdd,
+                  Gbl.RowEvenOdd,Txt_Question_removed);
 
       /***** Free structure that stores the query result *****/
       DB_FreeMySQLResult (&mysql_res);
diff --git a/swad_test_import.c b/swad_test_import.c
index 192a7c014..66e2f0c65 100644
--- a/swad_test_import.c
+++ b/swad_test_import.c
@@ -1033,17 +1033,15 @@ static void TsI_WriteRowImportedQst (struct XMLElement *StemElem,
         	             Txt_New_question);
 
    /***** Write number of question *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s CENTER_TOP\""
-	              " style=\"background-color:%s;\">",
-            ClassData,Gbl.ColorRows[Gbl.RowEvenOdd]);
+   fprintf (Gbl.F.Out,"<td class=\"%s CENTER_TOP COLOR%u\">",
+            ClassData,Gbl.RowEvenOdd);
    if (!QuestionExists)
       fprintf (Gbl.F.Out,"%u&nbsp;",++NumNonExistingQst);
    fprintf (Gbl.F.Out,"</td>");
 
    /***** Write the question tags *****/
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\""
-	              " style=\"background-color:%s;\">",
-            Gbl.ColorRows[Gbl.RowEvenOdd]);
+   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP COLOR%u\">",
+            Gbl.RowEvenOdd);
    if (Gbl.Test.NumTags)
      {
       /***** Write the tags *****/
@@ -1070,17 +1068,15 @@ static void TsI_WriteRowImportedQst (struct XMLElement *StemElem,
    fprintf (Gbl.F.Out,"</td>");
 
    /***** Write the question type *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s CENTER_TOP\""
-	              " style=\"background-color:%s;\">"
+   fprintf (Gbl.F.Out,"<td class=\"%s CENTER_TOP COLOR%u\">"
 	              "%s&nbsp;"
 	              "</td>",
-	    ClassData,Gbl.ColorRows[Gbl.RowEvenOdd],
+	    ClassData,Gbl.RowEvenOdd,
             Txt_TST_STR_ANSWER_TYPES[Gbl.Test.AnswerType]);
 
    /***** Write if shuffle is enabled *****/
-   fprintf (Gbl.F.Out,"<td class=\"CENTER_TOP\""
-	              " style=\"background-color:%s;\">",
-	    Gbl.ColorRows[Gbl.RowEvenOdd]);
+   fprintf (Gbl.F.Out,"<td class=\"CENTER_TOP COLOR%u\">",
+	    Gbl.RowEvenOdd);
    if (Gbl.Test.AnswerType == Tst_ANS_UNIQUE_CHOICE ||
        Gbl.Test.AnswerType == Tst_ANS_MULTIPLE_CHOICE)
       /* Put an icon that indicates whether shuffle is enabled or not */
@@ -1096,9 +1092,8 @@ static void TsI_WriteRowImportedQst (struct XMLElement *StemElem,
    fprintf (Gbl.F.Out,"</td>");
 
    /***** Write the stem and the answers *****/
-   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\""
-	              " style=\"background-color:%s;\">",
-            Gbl.ColorRows[Gbl.RowEvenOdd]);
+   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP COLOR%u\">",
+            Gbl.RowEvenOdd);
    Tst_WriteQstStem (Stem,ClassStem);
    Tst_WriteQstFeedback (Feedback,"TEST_EDI_LIGHT");
    switch (Gbl.Test.AnswerType)
diff --git a/swad_user.c b/swad_user.c
index ab1c48123..cd2557d77 100644
--- a/swad_user.c
+++ b/swad_user.c
@@ -2600,7 +2600,6 @@ static void Usr_InsertMyLastData (void)
 
 static void Usr_WriteRowGstMainData (unsigned NumUsr,struct UsrData *UsrDat)
   {
-   const char *BgColor;
    char PhotoURL[PATH_MAX+1];
    bool ShowPhoto;
    char MailLink[7+Usr_MAX_BYTES_USR_EMAIL+1];                // mailto:mail_address
@@ -2611,10 +2610,8 @@ static void Usr_WriteRowGstMainData (unsigned NumUsr,struct UsrData *UsrDat)
 
    /***** Checkbox to select user *****/
    // Two colors are used alternatively to better distinguish the rows
-   BgColor = Gbl.ColorRows[Gbl.RowEvenOdd];
-   fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE\""
-	              " style=\"background-color:%s;\">",
-            BgColor);
+   fprintf (Gbl.F.Out,"<td class=\"CENTER_MIDDLE COLOR%u\">",
+            Gbl.RowEvenOdd);
    Usr_PutCheckboxToSelectUser (Rol__GUEST_,UsrDat->EncryptedUsrCod,false);
    fprintf (Gbl.F.Out,"</td>");
 
@@ -2628,18 +2625,16 @@ static void Usr_WriteRowGstMainData (unsigned NumUsr,struct UsrData *UsrDat)
             Gbl.Prefs.IconsURL);
 
    /***** Write number of user in the list *****/
-   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL RIGHT_MIDDLE\""
-	              " style=\"background-color:%s;\">"
+   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL RIGHT_MIDDLE COLOR%u\">"
 	              "&nbsp;%u&nbsp;"
 	              "</td>",
-            BgColor,NumUsr);
+            Gbl.RowEvenOdd,NumUsr);
 
    if (Gbl.Usrs.Listing.WithPhotos)
      {
       /***** Show student's photo *****/
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE\""
-	                 " style=\"background-color:%s;\">",
-               BgColor);
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE COLOR%u\">",
+               Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowUsrPhotoIsAllowed (UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                                            NULL,
@@ -2651,18 +2646,17 @@ static void Usr_WriteRowGstMainData (unsigned NumUsr,struct UsrData *UsrDat)
    Usr_RestrictLengthMainData (true,UsrDat,MailLink);
 
    /****** Write user's IDs ******/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE\""
-	              " style=\"background-color:%s;\">",
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE COLOR%u\">",
             UsrDat->Accepted ? "DAT_SMALL_N" :
                                "DAT_SMALL",
-            BgColor);
+            Gbl.RowEvenOdd);
    ID_WriteUsrIDs (UsrDat,(Gbl.Usrs.Me.LoggedRole >= Rol_TEACHER));
    fprintf (Gbl.F.Out,"</td>");
 
    /***** Write rest of main student's data *****/
    Ins.InsCod = UsrDat->InsCod;
    Ins_GetDataOfInstitutionByCod (&Ins,Ins_GET_MINIMAL_DATA);
-   Usr_WriteMainUsrDataExceptUsrID (UsrDat,BgColor,true,
+   Usr_WriteMainUsrDataExceptUsrID (UsrDat,Gbl.ColorRows[Gbl.RowEvenOdd],true,
                                     UsrDat->Email[0]  ? MailLink :
                                 	                NULL,
                                     Ins.ShortName,
@@ -2787,7 +2781,6 @@ void Usr_WriteRowStdMainData (unsigned NumUsr,struct UsrData *UsrDat,bool PutChe
 
 static void Usr_WriteRowGstAllData (struct UsrData *UsrDat)
   {
-   const char *BgColor;
    char PhotoURL[PATH_MAX+1];
    bool ShowPhoto;
    struct Institution Ins;
@@ -2795,15 +2788,13 @@ static void Usr_WriteRowGstAllData (struct UsrData *UsrDat)
    struct Department Dpt;
 
    /***** Start row *****/
-   BgColor = Gbl.ColorRows[Gbl.RowEvenOdd];   // Two colors are used alternatively to better distinguish the rows
    fprintf (Gbl.F.Out,"<tr>");
 
    if (Gbl.Usrs.Listing.WithPhotos)
      {
       /***** Show guest's photo *****/
-      fprintf (Gbl.F.Out,"<td class=\"LDEFT_MIDDLE\""
-	                 " style=\"background-color:%s;\">",
-               BgColor);
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE COLOR%u\">",
+               Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowUsrPhotoIsAllowed (UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                                            NULL,
@@ -2812,16 +2803,15 @@ static void Usr_WriteRowGstAllData (struct UsrData *UsrDat)
      }
 
    /****** Write user's ID ******/
-   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL LEFT_MIDDLE\""
-	              " style=\"background-color:%s;\">",
-            BgColor);
+   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL LEFT_MIDDLE COLOR%u\">",
+            Gbl.RowEvenOdd);
    ID_WriteUsrIDs (UsrDat,true);
    fprintf (Gbl.F.Out,"&nbsp;</td>");
 
    /***** Write rest of guest's main data *****/
    Ins.InsCod = UsrDat->InsCod;
    Ins_GetDataOfInstitutionByCod (&Ins,Ins_GET_MINIMAL_DATA);
-   Usr_WriteMainUsrDataExceptUsrID (UsrDat,BgColor,true,NULL,Ins.ShortName,NULL);
+   Usr_WriteMainUsrDataExceptUsrID (UsrDat,Gbl.ColorRows[Gbl.RowEvenOdd],true,NULL,Ins.ShortName,NULL);
 
    /***** Write the rest of the data of the guest *****/
    if (UsrDat->Tch.CtrCod > 0)
@@ -2829,7 +2819,7 @@ static void Usr_WriteRowGstAllData (struct UsrData *UsrDat)
       Ctr.CtrCod = UsrDat->Tch.CtrCod;
       Ctr_GetDataOfCentreByCod (&Ctr);
      }
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->Tch.CtrCod > 0 ? Ctr.FullName :
 	                                      "&nbsp;",
 	             NULL,true,false);
@@ -2838,39 +2828,39 @@ static void Usr_WriteRowGstAllData (struct UsrData *UsrDat)
       Dpt.DptCod = UsrDat->Tch.DptCod;
       Dpt_GetDataOfDepartmentByCod (&Dpt);
      }
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->Tch.DptCod > 0 ? Dpt.FullName :
 	                                      "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->Tch.Office[0] ? UsrDat->Tch.Office :
 	                                     "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->Tch.OfficePhone[0] ? UsrDat->Tch.OfficePhone :
 	                                          "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->LocalAddress[0] ? UsrDat->LocalAddress :
 	                                       "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->LocalPhone[0] ? UsrDat->LocalPhone :
 	                                     "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->FamilyAddress[0] ? UsrDat->FamilyAddress :
 	                                        "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->FamilyPhone[0] ? UsrDat->FamilyPhone :
 	                                      "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->OriginPlace[0] ? UsrDat->OriginPlace :
 	                                      "&nbsp;",
 	             NULL,true,false);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->StrBirthday[0] ? UsrDat->StrBirthday :
 	                                      "&nbsp;",
 	             NULL,true,false);
@@ -2887,7 +2877,6 @@ static void Usr_WriteRowGstAllData (struct UsrData *UsrDat)
 
 void Usr_WriteRowStdAllData (struct UsrData *UsrDat,char *GroupNames)
   {
-   const char *BgColor;
    char PhotoURL[PATH_MAX+1];
    bool ShowPhoto;
    unsigned NumGrpTyp,NumField;
@@ -2900,15 +2889,13 @@ void Usr_WriteRowStdAllData (struct UsrData *UsrDat,char *GroupNames)
                     Gbl.Usrs.Me.LoggedRole == Rol_SYS_ADM;
 
    /***** Start row *****/
-   BgColor = Gbl.ColorRows[Gbl.RowEvenOdd];   // Two colors are used alternatively to better distinguish the rows
    fprintf (Gbl.F.Out,"<tr>");
 
    if (Gbl.Usrs.Listing.WithPhotos)
      {
       /***** Show student's photo *****/
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE\""
-	                 " style=\"background-color:%s;\">",
-               BgColor);
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE COLOR%u\">",
+               Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowUsrPhotoIsAllowed (UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                                            NULL,
@@ -2917,46 +2904,45 @@ void Usr_WriteRowStdAllData (struct UsrData *UsrDat,char *GroupNames)
      }
 
    /****** Write user's ID ******/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE\""
-	              " style=\"background-color:%s;\">",
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE COLOR%u\">",
             UsrDat->Accepted ? "DAT_SMALL_N" :
         	               "DAT_SMALL",
-            BgColor);
+            Gbl.RowEvenOdd);
    ID_WriteUsrIDs (UsrDat,(Gbl.Usrs.Me.LoggedRole >= Rol_TEACHER));
    fprintf (Gbl.F.Out,"&nbsp;</td>");
 
    /***** Write rest of main student's data *****/
    Ins.InsCod = UsrDat->InsCod;
    Ins_GetDataOfInstitutionByCod (&Ins,Ins_GET_MINIMAL_DATA);
-   Usr_WriteMainUsrDataExceptUsrID (UsrDat,BgColor,ShowData,NULL,Ins.ShortName,NULL);
+   Usr_WriteMainUsrDataExceptUsrID (UsrDat,Gbl.ColorRows[Gbl.RowEvenOdd],ShowData,NULL,Ins.ShortName,NULL);
 
    /***** Write the rest of the data of the student *****/
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->LocalAddress[0] ? (ShowData ? UsrDat->LocalAddress  :
 	                                                   "********") :
 	                                       "&nbsp;",
 	             NULL,true,UsrDat->Accepted);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->LocalPhone[0] ? (ShowData ? UsrDat->LocalPhone    :
                 	                                 "********") :
                 	                     "&nbsp;",
 	             NULL,true,UsrDat->Accepted);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->FamilyAddress[0] ? (ShowData ? UsrDat->FamilyAddress :
                 	                                    "********") :
                 	                        "&nbsp;",
 	             NULL,true,UsrDat->Accepted);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->FamilyPhone[0] ? (ShowData ? UsrDat->FamilyPhone   :
                 	                                  "********") :
                 	                      "&nbsp;",
 	             NULL,true,UsrDat->Accepted);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->OriginPlace[0] ? (ShowData ? UsrDat->OriginPlace   :
                 	                                  "********") :
                 	                      "&nbsp;",
 	             NULL,true,UsrDat->Accepted);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      UsrDat->StrBirthday[0] ? (ShowData ? UsrDat->StrBirthday   :
                 	                                  "********") :
                 	                      "&nbsp;",
@@ -2971,7 +2957,7 @@ void Usr_WriteRowStdAllData (struct UsrData *UsrDat,char *GroupNames)
          if (Gbl.CurrentCrs.Grps.GrpTypes.LstGrpTypes[NumGrpTyp].NumGrps)         // If current course tiene groups of este type
            {
             Grp_GetNamesGrpsStdBelongsTo (Gbl.CurrentCrs.Grps.GrpTypes.LstGrpTypes[NumGrpTyp].GrpTypCod,UsrDat->UsrCod,GroupNames);
-            Usr_WriteUsrData (BgColor,GroupNames,NULL,true,UsrDat->Accepted);
+            Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],GroupNames,NULL,true,UsrDat->Accepted);
            }
 
       /***** Fields of the record dependientes of the course *****/
@@ -2989,7 +2975,7 @@ void Usr_WriteRowStdAllData (struct UsrData *UsrDat,char *GroupNames)
            }
          else
             Text[0] = '\0';
-         Usr_WriteUsrData (BgColor,Text,NULL,false,UsrDat->Accepted);
+         Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],Text,NULL,false,UsrDat->Accepted);
 
          /* Free structure that stores the query result */
          DB_FreeMySQLResult (&mysql_res);
@@ -3109,7 +3095,6 @@ static void Usr_WriteRowTchMainData (unsigned NumUsr,struct UsrData *UsrDat,bool
 
 void Usr_WriteRowTchAllData (struct UsrData *UsrDat)
   {
-   const char *BgColor;
    char PhotoURL[PATH_MAX+1];
    bool ShowPhoto;
    struct Institution Ins;
@@ -3121,14 +3106,12 @@ void Usr_WriteRowTchAllData (struct UsrData *UsrDat)
    struct Department Dpt;
 
    /***** Start row *****/
-   BgColor = Gbl.ColorRows[Gbl.RowEvenOdd];   // Two colors are used alternatively to better distinguish the rows
    fprintf (Gbl.F.Out,"<tr>");
    if (Gbl.Usrs.Listing.WithPhotos)
      {
       /***** Show teacher's photo *****/
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE\""
-	                 " style=\"background-color:%s;\">",
-               BgColor);
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE COLOR%u\">",
+               Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowUsrPhotoIsAllowed (UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                                            NULL,
@@ -3137,18 +3120,17 @@ void Usr_WriteRowTchAllData (struct UsrData *UsrDat)
      }
 
    /****** Write the user's ID ******/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE\""
-	              " style=\"background-color:%s;\">",
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE COLOR%u\">",
             UsrDat->Accepted ? "DAT_SMALL_N" :
                                "DAT_SMALL",
-            BgColor);
+            Gbl.RowEvenOdd);
    ID_WriteUsrIDs (UsrDat,ID_ICanSeeTeacherID (UsrDat));
    fprintf (Gbl.F.Out,"&nbsp;</td>");
 
    /***** Write rest of main teacher's data *****/
    Ins.InsCod = UsrDat->InsCod;
    Ins_GetDataOfInstitutionByCod (&Ins,Ins_GET_MINIMAL_DATA);
-   Usr_WriteMainUsrDataExceptUsrID (UsrDat,BgColor,ShowData,NULL,Ins.ShortName,NULL);
+   Usr_WriteMainUsrDataExceptUsrID (UsrDat,Gbl.ColorRows[Gbl.RowEvenOdd],ShowData,NULL,Ins.ShortName,NULL);
 
    /***** Write the rest of teacher's data *****/
    if (ShowData && UsrDat->Tch.CtrCod > 0)
@@ -3156,7 +3138,7 @@ void Usr_WriteRowTchAllData (struct UsrData *UsrDat)
       Ctr.CtrCod = UsrDat->Tch.CtrCod;
       Ctr_GetDataOfCentreByCod (&Ctr);
      }
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      (ShowData && UsrDat->Tch.CtrCod > 0) ? Ctr.FullName :
                 	                                    "&nbsp;",
                      NULL,true,UsrDat->Accepted);
@@ -3165,15 +3147,15 @@ void Usr_WriteRowTchAllData (struct UsrData *UsrDat)
       Dpt.DptCod = UsrDat->Tch.DptCod;
       Dpt_GetDataOfDepartmentByCod (&Dpt);
      }
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      (ShowData && UsrDat->Tch.DptCod > 0) ? Dpt.FullName :
                 	                                    "&nbsp;",
                      NULL,true,UsrDat->Accepted);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      (ShowData && UsrDat->Tch.Office[0]) ? UsrDat->Tch.Office :
                 	                                   "&nbsp;",
                      NULL,true,UsrDat->Accepted);
-   Usr_WriteUsrData (BgColor,
+   Usr_WriteUsrData (Gbl.ColorRows[Gbl.RowEvenOdd],
                      (ShowData && UsrDat->Tch.OfficePhone[0]) ? UsrDat->Tch.OfficePhone :
                 	                                        "&nbsp;",
                      NULL,true,UsrDat->Accepted);
@@ -3189,29 +3171,25 @@ void Usr_WriteRowTchAllData (struct UsrData *UsrDat)
 
 void Usr_WriteRowAdmData (unsigned NumUsr,struct UsrData *UsrDat)
   {
-   const char *BgColor;
    char PhotoURL[PATH_MAX+1];
    bool ShowPhoto;
    char MailLink[7+Usr_MAX_BYTES_USR_EMAIL+1];                // mailto:mail_address
    struct Institution Ins;
 
    /***** Start row *****/
-   BgColor = Gbl.ColorRows[Gbl.RowEvenOdd];   // Two colors are used alternatively to better distinguish the rows
    fprintf (Gbl.F.Out,"<tr>");
 
    /***** Write number of user *****/
-   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL_N RIGHT_MIDDLE\""
-	              " style=\"background-color:%s;\">"
+   fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL_N RIGHT_MIDDLE COLOR%u\">"
 	              "&nbsp;%u&nbsp;"
 	              "</td>",
-            BgColor,NumUsr);
+            Gbl.RowEvenOdd,NumUsr);
 
    if (Gbl.Usrs.Listing.WithPhotos)
      {
       /***** Show administrator's photo *****/
-      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE\""
-	                 " style=\"background-color:%s;\">",
-               BgColor);
+      fprintf (Gbl.F.Out,"<td class=\"LEFT_MIDDLE COLOR%u\">",
+               Gbl.RowEvenOdd);
       ShowPhoto = Pho_ShowUsrPhotoIsAllowed (UsrDat,PhotoURL);
       Pho_ShowUsrPhoto (UsrDat,ShowPhoto ? PhotoURL :
                                            NULL,
@@ -3223,18 +3201,17 @@ void Usr_WriteRowAdmData (unsigned NumUsr,struct UsrData *UsrDat)
    Usr_RestrictLengthMainData (true,UsrDat,MailLink);
 
    /****** Write the user's ID ******/
-   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE\""
-	              " style=\"background-color:%s;\">",
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE COLOR%u\">",
             UsrDat->Accepted ? "DAT_SMALL_N" :
                                "DAT_SMALL",
-            BgColor);
+            Gbl.RowEvenOdd);
    ID_WriteUsrIDs (UsrDat,(Gbl.Usrs.Me.LoggedRole == Rol_SYS_ADM));
    fprintf (Gbl.F.Out,"&nbsp;</td>");
 
    /***** Write rest of main administrator's data *****/
    Ins.InsCod = UsrDat->InsCod;
    Ins_GetDataOfInstitutionByCod (&Ins,Ins_GET_MINIMAL_DATA);
-   Usr_WriteMainUsrDataExceptUsrID (UsrDat,BgColor,true,
+   Usr_WriteMainUsrDataExceptUsrID (UsrDat,Gbl.ColorRows[Gbl.RowEvenOdd],true,
                                     UsrDat->Email[0] ? MailLink :
                                 	               NULL,
                                     Ins.ShortName,