nbarthelemy.com

Thought this might help someone out. This adapts Prototype's Element#remove method to conditionally use a "leak-safe" method of removal outlined in this post on the MSDN forums.

/*
   Adapted for Prototype based on:
   http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2847218&SiteID=1
*/

Element.removeWithoutLeakProtection = Element.Methods.remove;
Element.addMethods({
  discard: function(element){
    element = $(element);
    var garbageBin = $('IELeakGarbageBin') || document.body.appendChild(
        new Element('div', { id:'IELeakGarbageBin', style:'display:none;' })
     );
    garbageBin.appendChild(element);
    garbageBin.innerHTML = '';
    return element;
  },
	
  remove: function(element){
    if( Prototype.Browser.IE ){
      return Element.discard(element);
    } else {
      return Element.removeWithoutLeakProtection(element);
    }
  }
});