diff --git a/comment/comment.js b/comment/comment.js
index a16b83a9c78..f137299a977 100644
--- a/comment/comment.js
+++ b/comment/comment.js
@@ -361,7 +361,13 @@ bodyContent: '<div class="comment-delete-confirm"><a href="#" id="confirmdelete-
                 } else {
                     // hide
                     container.setStyle('display', 'none');
-                    img.set('src', M.util.image_url('t/collapsed', 'core'));
+                    var collapsedimage = 't/collapsed'; // ltr mode
+                    if ( Y.one(document.body).hasClass('dir-rtl') ) {
+                        collapsedimage = 't/collapsed_rtl';
+                    } else {
+                        collapsedimage = 't/collapsed';
+                    }
+                    img.set('src', M.util.image_url(collapsedimage, 'core'));
                     if (ta) {
                         ta.set('value','');
                     }
diff --git a/comment/lib.php b/comment/lib.php
index dbf1058b417..d1b6dd57a25 100644
--- a/comment/lib.php
+++ b/comment/lib.php
@@ -422,8 +422,14 @@ class comment {
                 if ($this->displaytotalcount) {
                     $countstring = '('.$this->count().')';
                 }
+                $collapsedimage= 't/collapsed';
+                if (right_to_left()) {
+                    $collapsedimage= 't/collapsed_rtl';
+                } else {
+                    $collapsedimage= 't/collapsed';
+                }
                 $html .= html_writer::start_tag('a', array('class' => 'comment-link', 'id' => 'comment-link-'.$this->cid, 'href' => '#'));
-                $html .= html_writer::empty_tag('img', array('id' => 'comment-img-'.$this->cid, 'src' => $OUTPUT->pix_url('t/collapsed'), 'alt' => $this->linktext, 'title' => $this->linktext));
+                $html .= html_writer::empty_tag('img', array('id' => 'comment-img-'.$this->cid, 'src' => $OUTPUT->pix_url($collapsedimage), 'alt' => $this->linktext, 'title' => $this->linktext));
                 $html .= html_writer::tag('span', $this->linktext.' '.$countstring, array('id' => 'comment-link-text-'.$this->cid));
                 $html .= html_writer::end_tag('a');
             }
diff --git a/enrol/manual/yui/quickenrolment/quickenrolment.js b/enrol/manual/yui/quickenrolment/quickenrolment.js
index 5f4efe641f1..c1963aa674f 100644
--- a/enrol/manual/yui/quickenrolment/quickenrolment.js
+++ b/enrol/manual/yui/quickenrolment/quickenrolment.js
@@ -141,12 +141,19 @@ YUI.add('moodle-enrol_manual-quickenrolment', function(Y) {
             base.dd.addHandle('.'+CSS.HEADER+' h2');
             base.one('.'+CSS.HEADER+' h2').setStyle('cursor', 'move');
 
-            this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEHEADING).one('img').setAttribute('src', M.util.image_url('t/collapsed', 'moodle'));
+            var collapsedimage = 't/collapsed'; // ltr mode
+            if ( Y.one(document.body).hasClass('dir-rtl') ) {
+                collapsedimage = 't/collapsed_rtl';
+            } else {
+                collapsedimage = 't/collapsed';
+            }
+
+            this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEHEADING).one('img').setAttribute('src', M.util.image_url(collapsedimage, 'moodle'));
             this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEHEADING).on('click', function(){
                 this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEHEADING).toggleClass(CSS.ACTIVE);
                 this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEAREA).toggleClass(CSS.HIDDEN);
                 if (this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEAREA).hasClass(CSS.HIDDEN)) {
-                    this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEHEADING).one('img').setAttribute('src', M.util.image_url('t/collapsed', 'moodle'));
+                    this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEHEADING).one('img').setAttribute('src', M.util.image_url(collapsedimage, 'moodle'));
                 } else {
                     this.get(UEP.BASE).one('.'+CSS.SEARCHOPTIONS+' .'+CSS.COLLAPSIBLEHEADING).one('img').setAttribute('src', M.util.image_url('t/expanded', 'moodle'));
                 }
diff --git a/lib/javascript-static.js b/lib/javascript-static.js
index 068fb988c42..24ac3fac8e2 100644
--- a/lib/javascript-static.js
+++ b/lib/javascript-static.js
@@ -103,9 +103,15 @@ M.util.CollapsibleRegion = function(Y, id, userpref, strtooltip) {
 
     // Get the height of the div at this point before we shrink it if required
     var height = this.div.get('offsetHeight');
+    var collapsedimage = 't/collapsed'; // ltr mode
+    if ( Y.one(document.body).hasClass('dir-rtl') ) {
+        collapsedimage = 't/collapsed_rtl';
+    } else {
+        collapsedimage = 't/collapsed';
+    }
     if (this.div.hasClass('collapsed')) {
         // Add the correct image and record the YUI node created in the process
-        this.icon = Y.Node.create('<img src="'+M.util.image_url('t/collapsed', 'moodle')+'" alt="" />');
+        this.icon = Y.Node.create('<img src="'+M.util.image_url(collapsedimage, 'moodle')+'" alt="" />');
         // Shrink the div as it is collapsed by default
         this.div.setStyle('height', caption.get('offsetHeight')+'px');
     } else {
@@ -126,8 +132,14 @@ M.util.CollapsibleRegion = function(Y, id, userpref, strtooltip) {
     // Handler for the animation finishing.
     animation.on('end', function() {
         this.div.toggleClass('collapsed');
+        var collapsedimage = 't/collapsed'; // ltr mode
+        if ( Y.one(document.body).hasClass('dir-rtl') ) {
+            collapsedimage = 't/collapsed_rtl';
+            } else {
+            collapsedimage = 't/collapsed';
+            }
         if (this.div.hasClass('collapsed')) {
-            this.icon.set('src', M.util.image_url('t/collapsed', 'moodle'));
+            this.icon.set('src', M.util.image_url(collapsedimage, 'moodle'));
         } else {
             this.icon.set('src', M.util.image_url('t/expanded', 'moodle'));
         }