div content change event.js

var myElement = document.getElementById('IDoftheDIV');
if(window.addEventListener) {
   // Normal browsers
   myElement.addEventListener('DOMSubtreeModified', contentChanged, false);
} else
   if(window.attachEvent) {
      // IE
      myElement.attachEvent('DOMSubtreeModified', contentChanged);
   }

function contentChanged() {
   // this function will run each time the content of the DIV changes
}

It works...

...and if the the change your listening for involves a list being iterated, you get to watch it work ' + list.length-1 + " times in rapid succession!