if (!window.Utility)
  var Utility = new Object();
  
Utility.appendEvent = function(elm, evType, fn) {
	var prev = elm["on"+evType];
  /*
  elm["on"+evType] =  function() {
	  if(prev != undefined) prev(); 
		fn(); 
	}*/
  //elm.attachEvent("on"+evType, function(){
  elm["on"+evType] =  function() {
    if(prev != undefined) prev(); 
		fn();
  }
	return;
};

var adRandom = getRandomNum();


function getRandomNum() { 
	if(adRandom == null) 
		return Math.random()*1000000000;
		
	return adRandom; 
}