      */
     override protected function commitProperties():void
     {
-    	if (dataProviderChanged && !popUpMenu)
-    	{
-    		// In general we shouldn't create the popUp until
-	        // they are actually popped up. However, in this case
-	        // the initial label, icon and action on the main button's 
-	        // click are to be borrowed from the popped menu. 
-	        // Moreover since PopUpMenuButton doesn't expose selectedIndex
-	        // selectedItem etc., one should be able to access them
-	        // prior to popping up the menu.        
-	        getPopUp();
-    	}
-    	
+        if (dataProviderChanged && !popUpMenu)
+        {
+            // In general we shouldn't create the popUp until
+            // they are actually popped up. However, in this case
+            // the initial label, icon and action on the main button's 
+            // click are to be borrowed from the popped menu. 
+            // Moreover since PopUpMenuButton doesn't expose selectedIndex
+            // selectedItem etc., one should be able to access them
+            // prior to popping up the menu.        
+            getPopUp();
+        }
+        
         if (_showRootChanged)
         {
             _showRootChanged = false;

     *  If you specify this property, Flex ignores any <code>iconField</code>
     *  property value.
     *
     *  By default the menu does not try to display icons with the text 
     *  in the rows.  However, by specifying an icon function, you can specify 
     *  a Class for a graphic that will be created and displayed as an icon 
     *  in the row. 
     *
     *  <p>The iconFunction takes a single argument which is the item
     *  in the data provider and returns a Class.</p>
     * 
     *  <blockquote>
     *  <code>iconFunction(item:Object):Class</code>

     *  show for each menu item.
     *  The <code>iconFunction</code> property, if set, overrides this property.
     * 
     *  <p>The item renderer looks in the data provider for a property with 
     *  the name specified to the <code>iconField</code> property.  
     *  If the value of the property is a 
     *  Class, it instantiates that class and expect it to be an instance 
     *  of an IFlexDisplayObject. If the value of the property is a String, 
     *  it looks to see if a Class property exists with that name in the application. 
     *  If it can't find a property on the application, it looks for a property on the 
     *  document with that name and expect that property to map to a Class.</p>
     * 
     *  <p>If the data provider is an E4X XML object, you must set this property
     *  explicitly; for example, use &#064;icon to specify the <code>icon</code> attribute.</p>
     *
     *  @default "icon"
     */
