code: function(target, handler) {
  			// Adding target elements references into handler
  			handler.target = target;
  
  			// Storing the new handler into handler list
  			$.iframeTracker.handlersList.push(handler);
  
  			// Binding boundary listener
  			$(target)
  				.bind("mouseover", { handler: handler }, $.iframeTracker.mouseoverListener)
  				.bind("mouseout",  { handler: handler }, $.iframeTracker.mouseoutListener);
  		}
docs: Add tracker to target using handler (bind boundary listener + register handler) target: Array of target elements (native DOM elements) handler: User handler object