Element.prototype in IE7?

Question

I'm trying to extend all dom elements so i can get and remove their children. The function is below (works in FF and Chrome). Is there an equivalent in IE7 to extend the base dom object?

if (!Element.get) {
Element.prototype.get = function(id) {
 for (var i = 0; i < this.childNodes.length; i++) {
  if (this.childNodes[i].id == id) {
   return this.childNodes[i];
  }
  if (this.childNodes[i].childNodes.length) {
   var ret = this.childNodes[i].get(id);
   if (ret != null) {
    return ret;
   }
  }
 }
 return null;
}
}

Element.prototype.removeChildren = function() {
    removeChildren(this);
}

Thanks!

Answer 1

No. There will be some limited support in IE8, but 'till then you're better off finding another place to hang your functions.

Answer 2

Here is a simple workaround that will be sufficient in 99% of cases. It may as well be completed as required by your script :

if ( !window.Element )
{
        Element = function(){}

        var __createElement = document.createElement;
        document.createElement = function(tagName)
        {
         var element = __createElement(tagName);
         for(var key in Element.prototype)
          element[key] = Element.prototype[key];
         return element;
        }

        var __getElementById = document.getElementById
        document.getElementById = function(id)
        {
         var element = __getElementById(id);
         for(var key in Element.prototype)
          element[key] = Element.prototype[key];
         return element;
        }
}