diff --git a/blocks/community/styles.css b/blocks/community/styles.css
index 34f06607458..4a7f1e490a7 100644
--- a/blocks/community/styles.css
+++ b/blocks/community/styles.css
@@ -213,6 +213,7 @@
     background-color:#F6F6F6;
     border:1px solid #CCCCCC;
     overflow: auto;
+    padding: 7px 6px;
 }
 
 #page-blocks-community-communitycourse .moodle-dialogue-base .moodle-dialogue-bd {
@@ -222,5 +223,5 @@
 
 #page-blocks-community-communitycourse .moodle-dialogue-base .closebutton {
     margin-top:4px;
-    width:30px;
+    margin-right:4px;
 }
\ No newline at end of file
diff --git a/blocks/community/yui/comments/comments.js b/blocks/community/yui/comments/comments.js
index 7355b8042b6..296c1156eef 100644
--- a/blocks/community/yui/comments/comments.js
+++ b/blocks/community/yui/comments/comments.js
@@ -9,8 +9,8 @@ YUI.add('moodle-block_community-comments', function(Y) {
     Y.extend(COMMENTS, Y.Base, {
 
         event:null,
-        overlayevent:null,
-        overlays: [], //all the comment boxes
+        panelevent:null,
+        panels: [], //all the comment boxes
 
         initializer : function(params) {
 
@@ -18,17 +18,18 @@ YUI.add('moodle-block_community-comments', function(Y) {
             for (var i=0;i<this.get('commentids').length;i++)
             {
                 var commentid = this.get('commentids')[i];
-                this.overlays[commentid] = new M.core.dialogue({
-                    headerContent:Y.one('#commentoverlay-'+commentid+' .commenttitle').get('innerHTML'),
+                this.panels[commentid] = new M.core.dialogue({
+                    headerContent:Y.Node.create('<h1>')
+                        .append(Y.one('#commentoverlay-'+commentid+' .commenttitle').get('innerHTML')),
                     bodyContent:Y.one('#commentoverlay-'+commentid).get('innerHTML'),
                     visible: false, //by default it is not displayed
                     lightbox : false,
                     zIndex:100
                 });
 
-                this.overlays[commentid].get('contentBox').one('.commenttitle').remove();
-                this.overlays[commentid].render();
-                this.overlays[commentid].hide();
+                this.panels[commentid].get('contentBox').one('.commenttitle').remove();
+                this.panels[commentid].render();
+                this.panels[commentid].hide();
 
                 Y.one('#comments-'+commentid).on('click', this.show, this, commentid);
             }
@@ -37,34 +38,34 @@ YUI.add('moodle-block_community-comments', function(Y) {
 
         show : function (e, commentid) {
 
-            //hide all overlays
+            //hide all panels
             for (var i=0;i<this.get('commentids').length;i++)
             {
                 this.hide(e, this.get('commentids')[i]);
             }
 
-            this.overlays[commentid].show(); //show the overlay
+            this.panels[commentid].show(); //show the panel
 
-            e.halt(); // we are going to attach a new 'hide overlay' event to the body,
+            e.halt(); // we are going to attach a new 'hide panel' event to the body,
             // because javascript always propagate event to parent tag,
             // we need to tell Yahoo to stop to call the event on parent tag
             // otherwise the hide event will be call right away.
 
-            //we add a new event on the body in order to hide the overlay for the next click
+            //we add a new event on the body in order to hide the panel for the next click
             this.event = Y.one(document.body).on('click', this.hide, this, commentid);
-            //we add a new event on the overlay in order to hide the overlay for the next click (touch device)
-            this.overlayevent = Y.one("#commentoverlay-"+commentid).on('click', this.hide, this, commentid);
+            //we add a new event on the panel in order to hide the panel for the next click (touch device)
+            this.panelevent = Y.one("#commentoverlay-"+commentid).on('click', this.hide, this, commentid);
         },
 
         hide : function (e, commentid) {
-            this.overlays[commentid].hide(); //hide the overlay
+            this.panels[commentid].hide(); //hide the panel
             if (this.event != null) {
                 this.event.detach(); //we need to detach the body hide event
             //Note: it would work without but create js warning everytime
             //we click on the body
             }
-            if (this.overlayevent != null) {
-                this.overlayevent.detach(); //we need to detach the overlay hide event
+            if (this.panelevent != null) {
+                this.panelevent.detach(); //we need to detach the panel hide event
             //Note: it would work without but create js warning everytime
             //we click on the body
             }
@@ -84,5 +85,5 @@ YUI.add('moodle-block_community-comments', function(Y) {
     }
 
 }, '@VERSION@', {
-    requires:['base','overlay', 'moodle-enrol-notification']
+    requires:['base', 'moodle-enrol-notification']
 });
diff --git a/blocks/community/yui/imagegallery/imagegallery.js b/blocks/community/yui/imagegallery/imagegallery.js
index f91abb08e42..772ec1416c9 100644
--- a/blocks/community/yui/imagegallery/imagegallery.js
+++ b/blocks/community/yui/imagegallery/imagegallery.js
@@ -11,8 +11,8 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
         event:null,
         previousevent:null,
         nextevent:null,
-        overlayevent:null,
-        overlay:null, //all the comment boxes
+        panelevent:null,
+        panel:null, //all the images boxes
         imageidnumbers: [],
         imageloadingevent: null,
         loadingimage: null,
@@ -26,15 +26,15 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
                 +'</div>');
             objBody.append(this.loadingimage);
 
-            /// create the div for overlay
+            /// create the div for panel
             var objBody = Y.one(document.body);
-            var overlaytitle = Y.Node.create('<div id="imagetitleoverlay" class="hiddenoverlay"></div>');
-            objBody.append(overlaytitle);
-            var overlay = Y.Node.create('<div id="imageoverlay" class="hiddenoverlay"></div>');
-            objBody.append(overlay);
+            var paneltitle = Y.Node.create('<div id="imagetitleoverlay" class="hiddenoverlay"></div>');
+            objBody.append(paneltitle);
+            var panel = Y.Node.create('<div id="imageoverlay" class="hiddenoverlay"></div>');
+            objBody.append(panel);
 
-            /// create the overlay
-            this.overlay = new M.core.dialogue({
+            /// create the panel
+            this.panel = new M.core.dialogue({
                 headerContent:Y.one('#imagetitleoverlay').get('innerHTML'),
                 bodyContent:Y.one('#imageoverlay').get('innerHTML'),
                 visible: false, //by default it is not displayed
@@ -42,8 +42,8 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
                 zIndex:100
             });
 
-            this.overlay.render();
-            this.overlay.hide();
+            this.panel.render();
+            this.panel.hide();
 
             //attach a show event on the image divs (<tag id='image-X'>)
             for (var i=0;i<this.get('imageids').length;i++)
@@ -85,31 +85,31 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
             var maxheight = windowheight - 150;
 
             //load the title + link to next image
-            var overlaytitle = Y.one('#imagetitleoverlay');
+            var paneltitle = Y.one('#imagetitleoverlay');
             var previousimagelink = "<div id=\"previousarrow\" class=\"imagearrow\">←</div>";
             var nextimagelink = "<div id=\"nextarrow\" class=\"imagearrow\">→</div>";
 
-            /// need to load the images in the overlay
-            var overlay = Y.one('#imageoverlay');
-            overlay.setContent('');
+            /// need to load the images in the panel
+            var panel = Y.one('#imageoverlay');
+            panel.setContent('');
 
 
-            overlay.append(Y.Node.create('<div style="text-align:center"><img id=\"imagetodisplay\" src="' + url
+            panel.append(Y.Node.create('<div style="text-align:center"><img id=\"imagetodisplay\" src="' + url
                 + '" style="max-height:' + maxheight + 'px;"></div>'));
-            this.overlay.destroy();
-            this.overlay = new M.core.dialogue({
-                headerContent:previousimagelink + '<div id=\"imagenumber\" class=\"imagetitle\"> Image '
-                + screennumber + ' / ' + this.imageidnumbers[imageid] + ' </div>' + nextimagelink,
+            this.panel.destroy();
+            this.panel = new M.core.dialogue({
+                headerContent:previousimagelink + '<div id=\"imagenumber\" class=\"imagetitle\"><h1> Image '
+                + screennumber + ' / ' + this.imageidnumbers[imageid] + ' </h1></div>' + nextimagelink,
                 bodyContent:Y.one('#imageoverlay').get('innerHTML'),
                 visible: false, //by default it is not displayed
                 lightbox : false,
                 zIndex:100
             });
-            this.overlay.render();
-            this.overlay.hide(); //show the overlay
-            this.overlay.set("centered", true);
+            this.panel.render();
+            this.panel.hide(); //show the panel
+            this.panel.set("centered", true);
 
-            e.halt(); // we are going to attach a new 'hide overlay' event to the body,
+            e.halt(); // we are going to attach a new 'hide panel' event to the body,
             // because javascript always propagate event to parent tag,
             // we need to tell Yahoo to stop to call the event on parent tag
             // otherwise the hide event will be call right away.
@@ -123,14 +123,14 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
                 var screenshot = new Image();
                 screenshot.src = url;
 
-                var overlaywidth = windowwidth - 100;
-                if(overlaywidth > screenshot.width) {
-                    overlaywidth = screenshot.width;
+                var panelwidth = windowwidth - 100;
+                if(panelwidth > screenshot.width) {
+                    panelwidth = screenshot.width;
                 }
 
-                this.overlay.set('width', overlaywidth);
-                this.overlay.set("centered", true);
-                this.overlay.show();
+                this.panel.set('width', panelwidth);
+                this.panel.set("centered", true);
+                this.panel.show();
 
             }, this, url);
 
@@ -147,12 +147,12 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
             Y.one('#nextarrow').on('click', this.show, this, imageid, nextnumber);
             Y.one('#imagenumber').on('click', this.show, this, imageid, nextnumber);
 
-            //we add a new event on the body in order to hide the overlay for the next click
+            //we add a new event on the body in order to hide the panel for the next click
             this.event = Y.one(document.body).on('click', this.hide, this);
-            //we add a new event on the overlay in order to hide the overlay for the next click (touch device)
-            this.overlayevent = Y.one("#imageoverlay").on('click', this.hide, this);
+            //we add a new event on the panel in order to hide the panel for the next click (touch device)
+            this.panelevent = Y.one("#imageoverlay").on('click', this.hide, this);
 
-            this.overlay.on('visibleChange',function(e){
+            this.panel.on('visibleChange',function(e){
                 if(e.newVal == 0){
                     this.get('maskNode').remove()
                 }
@@ -167,14 +167,14 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
             //hide the loading image
             Y.one('#hubloadingimage').setStyle('display', 'none');
 
-            this.overlay.hide(); //hide the overlay
+            this.panel.hide(); //hide the panel
             if (this.event != null) {
                 this.event.detach(); //we need to detach the body hide event
             //Note: it would work without but create js warning everytime
             //we click on the body
             }
-            if (this.overlayevent != null) {
-                this.overlayevent.detach(); //we need to detach the overlay hide event
+            if (this.panelevent != null) {
+                this.panelevent.detach(); //we need to detach the panel hide event
             //Note: it would work without but create js warning everytime
             //we click on the body
             }
@@ -195,5 +195,5 @@ YUI.add('moodle-block_community-imagegallery', function(Y) {
     }
 
 }, '@VERSION@', {
-    requires:['base','node','overlay', 'moodle-enrol-notification']
+    requires:['base','node', 'moodle-enrol-notification']
 });
diff --git a/enrol/yui/notification/assets/skins/sam/notification.css b/enrol/yui/notification/assets/skins/sam/notification.css
index 66cdddae409..68c66d0c711 100644
--- a/enrol/yui/notification/assets/skins/sam/notification.css
+++ b/enrol/yui/notification/assets/skins/sam/notification.css
@@ -1,11 +1,14 @@
 .moodle-dialogue-base .hidden,
 .moodle-dialogue-base .moodle-dialogue-hidden {display:none;}
-.moodle-dialogue-base .moodle-dialogue-lightbox {background-color:#AAA;position:absolute;top:0;left:0;width:100%;height:100%;}
+.moodle-dialogue-base .moodle-dialogue-lightbox {background-color:#AAA;}
 .moodle-dialogue-base .moodle-dialogue {background-color:#666;border:0 solid #666;border-right-width:3px;border-bottom-width:3px;}
 .moodle-dialogue-base .moodle-dialogue-wrap {background-color:#FFF;margin-top:-3px;margin-left:-3px;border:1px solid #555;height:auto;}
-.moodle-dialogue-base .moodle-dialogue-hd {font-size:110%;color:inherit;font-weight:bold;text-align:left;padding:5px 6px;margin:0;border-bottom:1px solid #ccc;background-color:#f6f6f6;}
-.moodle-dialogue-base .closebutton {background-image:url(sprite.png);width:25px;height:15px;background-repeat:no-repeat;float:right;vertical-align:middle;display:inline-block;cursor:pointer;}
+.moodle-dialogue-base .moodle-dialogue-wrap .moodle-dialogue-hd {font-size:110%;color:inherit;font-weight:bold;text-align:left;padding:5px 6px;margin:0;border-bottom:1px solid #ccc;background:#f6f6f6;}
+.moodle-dialogue-base .moodle-dialogue-wrap .moodle-dialogue-hd h1{font-size:100%;font-weight:bold;margin:0;padding:0;display:inline;}
+.moodle-dialogue-base .moodle-dialogue-wrap .moodle-dialogue-hd .yui3-widget-buttons {padding: 5px;}
+.moodle-dialogue-base .closebutton {background-image:url(sprite.png);width:25px;height:15px;background-repeat:no-repeat;float:right;vertical-align:middle;display:inline-block;cursor:pointer;padding:0px;border-style:none;}
 .moodle-dialogue-base .moodle-dialogue-bd {padding:5px; overflow: auto;}
+.moodle-dialogue-base .moodle-dialogue-wrap .moodle-dialogue-content {background:#FFF;padding:0px;}
 .moodle-dialogue-base .moodle-dialogue-ft {}
 
 .moodle-dialogue-confirm .confirmation-dialogue {text-align:center;}
diff --git a/enrol/yui/notification/notification.js b/enrol/yui/notification/notification.js
index ec41d6f66a1..0093b680d4b 100644
--- a/enrol/yui/notification/notification.js
+++ b/enrol/yui/notification/notification.js
@@ -8,8 +8,6 @@ var DIALOGUE_NAME = 'Moodle dialogue',
     ALERT_NAME = 'Moodle alert',
     C = Y.Node.create,
     BASE = 'notificationBase',
-    LIGHTBOX = 'lightbox',
-    NODELIGHTBOX = 'nodeLightbox',
     COUNT = 0,
     CONFIRMYES = 'yesLabel',
     CONFIRMNO = 'noLabel',
@@ -31,7 +29,6 @@ var DIALOGUE = function(config) {
     var id = 'moodle-dialogue-'+COUNT;
     config.notificationBase =
         C('<div class="'+CSS.BASE+'">')
-            .append(C('<div class="'+CSS.LIGHTBOX+' '+CSS.HIDDEN+'"></div>'))
             .append(C('<div id="'+id+'" class="'+CSS.WRAP+'"></div>')
                 .append(C('<div class="'+CSS.HEADER+' yui3-widget-hd"></div>'))
                 .append(C('<div class="'+CSS.BODY+' yui3-widget-bd"></div>'))
@@ -42,34 +39,41 @@ var DIALOGUE = function(config) {
     config.visible =    config.visible || false;
     config.center =     config.centered || true;
     config.centered =   false;
+
+    // lightbox param to keep the stable versions API
+    if (config.lightbox === true) {
+        config.modal = true;
+    }
+    delete config.lightbox;
+
+    // closeButton param to keep the stable versions API
+    if (config.closeButton === false) {
+        config.buttons = null;
+    } else {
+        config.buttons = [
+            {
+                section: Y.WidgetStdMod.HEADER,
+                value     : '',
+                classNames: 'closebutton',
+                action: function (e) {
+                	e.preventDefault();
+                    this.hide();
+                }
+            }
+        ];
+    }
     DIALOGUE.superclass.constructor.apply(this, [config]);
 };
-Y.extend(DIALOGUE, Y.Overlay, {
+Y.extend(DIALOGUE, Y.Panel, {
     initializer : function(config) {
-        this.set(NODELIGHTBOX, this.get(BASE).one('.'+CSS.LIGHTBOX).setStyle('opacity', 0.5));
         this.after('visibleChange', this.visibilityChanged, this);
-        this.after('headerContentChange', function(e){
-            var h = (this.get('closeButton'))?this.get(BASE).one('.'+CSS.HEADER):false;
-            if (h && !h.one('.closebutton')) {
-                var c = C('<div class="closebutton"></div>');
-                c.on('click', this.hide, this);
-                h.append(c);
-            }
-        }, this);
         this.render();
         this.show();
     },
     visibilityChanged : function(e) {
         switch (e.attrName) {
             case 'visible':
-                if (this.get(LIGHTBOX)) {
-                    var l = this.get(NODELIGHTBOX);
-                    if (!e.prevVal && e.newVal) {
-                        l.setStyle('height',l.get('docHeight')+'px').removeClass(CSS.HIDDEN);
-                    } else if (e.prevVal && !e.newVal) {
-                        l.addClass(CSS.HIDDEN);
-                    }
-                }
+                this.get('maskNode').addClass(CSS.LIGHTBOX);
                 if (this.get('center') && !e.prevVal && e.newVal) {
                     this.centerDialogue();
                 }
@@ -95,9 +99,6 @@ Y.extend(DIALOGUE, Y.Overlay, {
     ATTRS : {
         notificationBase : {
 
-        },
-        nodeLightbox : {
-            value : null
         },
         lightbox : {
             validator : Y.Lang.isBoolean,
@@ -116,6 +117,9 @@ Y.extend(DIALOGUE, Y.Overlay, {
 
 var ALERT = function(config) {
     config.closeButton = false;
+    if (config.lightbox !== false) {
+        config.lightbox = true;
+    }
     ALERT.superclass.constructor.apply(this, [config]);
 };
 Y.extend(ALERT, DIALOGUE, {
@@ -129,7 +133,7 @@ Y.extend(ALERT, DIALOGUE, {
                             .append(yes));
         this.get(BASE).addClass('moodle-dialogue-confirm');
         this.setStdModContent(Y.WidgetStdMod.BODY, content, Y.WidgetStdMod.REPLACE);
-        this.setStdModContent(Y.WidgetStdMod.HEADER, this.get(TITLE), Y.WidgetStdMod.REPLACE);
+        this.setStdModContent(Y.WidgetStdMod.HEADER, '<h1>' + this.get(TITLE) + '</h1>', Y.WidgetStdMod.REPLACE);
         this.after('destroyedChange', function(){this.get(BASE).remove();}, this);
         this._enterKeypress = Y.on('key', this.submit, window, 'down:13', this);
         yes.on('click', this.submit, this);
@@ -166,6 +170,9 @@ Y.extend(ALERT, DIALOGUE, {
 });
 
 var CONFIRM = function(config) {
+    if (config.lightbox !== false) {
+        config.lightbox = true;
+    }
     CONFIRM.superclass.constructor.apply(this, [config]);
 };
 Y.extend(CONFIRM, DIALOGUE, {
@@ -184,7 +191,7 @@ Y.extend(CONFIRM, DIALOGUE, {
                             .append(no));
         this.get(BASE).addClass('moodle-dialogue-confirm');
         this.setStdModContent(Y.WidgetStdMod.BODY, content, Y.WidgetStdMod.REPLACE);
-        this.setStdModContent(Y.WidgetStdMod.HEADER, this.get(TITLE), Y.WidgetStdMod.REPLACE);
+        this.setStdModContent(Y.WidgetStdMod.HEADER, '<h1>' + this.get(TITLE) + '</h1>', Y.WidgetStdMod.REPLACE);
         this.after('destroyedChange', function(){this.get(BASE).remove();}, this);
         this._enterKeypress = Y.on('key', this.submit, window, 'down:13', this, true);
         this._escKeypress = Y.on('key', this.submit, window, 'down:27', this, false);
@@ -237,7 +244,7 @@ Y.extend(EXCEPTION, DIALOGUE, {
     _keypress : null,
     initializer : function(config) {
         this.get(BASE).addClass('moodle-dialogue-exception');
-        this.setStdModContent(Y.WidgetStdMod.HEADER, config.name, Y.WidgetStdMod.REPLACE);
+        this.setStdModContent(Y.WidgetStdMod.HEADER, '<h1>' + config.name + '</h1>', Y.WidgetStdMod.REPLACE);
         var content = C('<div class="moodle-exception"></div>')
                     .append(C('<div class="moodle-exception-message">'+this.get('message')+'</div>'))
                     .append(C('<div class="moodle-exception-param hidden param-filename"><label>File:</label> '+this.get('fileName')+'</div>'))
@@ -308,7 +315,7 @@ Y.extend(AJAXEXCEPTION, DIALOGUE, {
     _keypress : null,
     initializer : function(config) {
         this.get(BASE).addClass('moodle-dialogue-exception');
-        this.setStdModContent(Y.WidgetStdMod.HEADER, config.name, Y.WidgetStdMod.REPLACE);
+        this.setStdModContent(Y.WidgetStdMod.HEADER, '<h1>' + config.name + '</h1>', Y.WidgetStdMod.REPLACE);
         var content = C('<div class="moodle-ajaxexception"></div>')
                     .append(C('<div class="moodle-exception-message">'+this.get('error')+'</div>'))
                     .append(C('<div class="moodle-exception-param hidden param-debuginfo"><label>URL:</label> '+this.get('reproductionlink')+'</div>'))
@@ -372,4 +379,4 @@ M.core.confirm = CONFIRM;
 M.core.exception = EXCEPTION;
 M.core.ajaxException = AJAXEXCEPTION;
 
-}, '@VERSION@', {requires:['base','node','overlay','event-key', 'moodle-enrol-notification-skin']});
+}, '@VERSION@', {requires:['base','node','panel','event-key', 'moodle-enrol-notification-skin']});