removing .bind mootools call (phase 1/2)

mindplot/src/main/javascript/widget/IMenu.js

@@ -27,11 +27,11 @@ mindplot.widget.IMenu = new Class({
         this._containerId = containerId;
         this._mapId = mapId;
         this._mindmapUpdated = false;
-
+        var me = this;
         // Register update events ...
         this._designer.addEvent('modelUpdate', function () {
-            this.setRequireChange(true);
-        }.bind(this));
+            me.setRequireChange(true);
+        });
     },
 
     clear:function () {

mindplot/src/main/javascript/widget/IconPanel.js

@@ -55,9 +55,9 @@ mindplot.widget.IconPanel = new Class({
                 var panel = this;
                 var model = this.getModel();
                 img.on('click', function (event) {
-                    model.setValue(this.attr('id'));
+                    model.setValue($(this).attr('id'));
                     panel.hide();
-                }.bind(img));
+                });
 
                 count = count + 1;
             }

mindplot/src/main/javascript/widget/ToolbarPaneItem.js

@@ -22,15 +22,11 @@ mindplot.widget.ToolbarPaneItem = new Class({
         $assert(buttonId, "buttonId can not be null");
         $assert(model, "model can not be null");
         this._model = model;
+        var me = this;
         var fn = function() {
             // Is the panel being displayed ?
-            if (this.isVisible()) {
-                this.hide();
-            } else {
-                this.show();
-            }
-
-        }.bind(this);
+            me.isVisible() ? me.hide() : me.show();
+        };
         this.parent(buttonId, fn, {topicAction:true,relAction:false});
         this._panelElem = this._init();
         this._visible = false;