code: function (el, eventType, handler) {
  			// workaround for jQuery issue with unbinding custom events:
  			// http://forum.jQuery.com/topic/javascript-error-when-unbinding-a-custom-event-using-jQuery-1-4-2
  			var func = doc.removeEventListener ? 'removeEventListener' : 'detachEvent';
  			if (doc[func] && el && !el[func]) {
  				el[func] = function () {};
  			}
  	
  			$(el).unbind(eventType, handler);
  		}
docs: Remove event added with addEvent
  @param {Object} el The object
  @param {String} eventType The event type. Leave blank to remove all events.
  @param {Function} handler The function to remove