diff --git a/lib/weblib.php b/lib/weblib.php
index a23cfc7d50f..859be138ca9 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -3023,7 +3023,8 @@ function print_textarea($usehtmleditor, $rows, $cols, $width, $height, $name, $v
 
     $mincols = 65;
     $minrows = 10;
-
+    $str = '';
+    
     if (empty($courseid)) {
         if (!empty($course->id)) {  // search for it in global context
             $courseid = $course->id;
@@ -3037,9 +3038,9 @@ function print_textarea($usehtmleditor, $rows, $cols, $width, $height, $name, $v
     if ($usehtmleditor) {
 
         if (!empty($courseid) and isteacher($courseid)) {
-            $str = ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->wwwroot .'/lib/editor/htmlarea.php?id='. $courseid .'"></script>'."\n" : '';
+            $str .= ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->wwwroot .'/lib/editor/htmlarea.php?id='. $courseid .'"></script>'."\n" : '';
         } else {
-            $str = ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->wwwroot .'/lib/editor/htmlarea.php"></script>'."\n" : '';
+            $str .= ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->wwwroot .'/lib/editor/htmlarea.php"></script>'."\n" : '';
         }
         $str .= ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->wwwroot .'/lib/editor/lang/en.php"></script>'."\n" : '';
         $scriptcount++;