registerDomEvent = function( uiElement, dialog, eventName, func )
			{
				dialog.on( 'load', function()
				{
					uiElement.getInputElement().on( eventName, func, uiElement );
				});
			}
Registers the on* event handlers defined in the element definition.
The default behavior of this function is:
<ol>
 <li>
 	If the on* event is defined in the class's eventProcesors list,
 	then the registration is delegated to the corresponding function
 	in the eventProcessors list.
 </li>
 <li>
 	If the on* event is not defined in the eventProcessors list, then
 	register the event handler under the corresponding DOM event of
 	the UI element's input DOM element (as defined by the return value
 	of {@link CKEDITOR.ui.dialog.uiElement#getInputElement}).
 </li>
</ol>
This function is only called at UI element instantiation, but can
be overridded in child classes if they require more flexibility.
@param {CKEDITOR.dialog.uiElementDefinition} definition The UI element
definition.
@returns {CKEDITOR.dialog.uiElement} The current UI element.
@example