How to auto-trigger onscroll when dynamically adding content with jQuery?

How to auto-trigger onscroll when dynamically adding content with jQuery?

With .on(scroll or .scroll( we can detect window or element scrolling when we do a physical scroll, by either dragging the scrollbar or using the mousewheel.

But it cannot be auto-triggered with dynamically added content.

Here is the an example: http://jsfiddle.net/vs5bR/
 
There is an event listener MozScrolledAreaChanged which is for Mozilla only.  
 
Is there a cross-browser solution for this? I'v seen the DOM check method, which checks DOM element change all the time, and doesn't seem to be a good one.