function addLoadListener(fn)
{
 if (typeof window.addEventListener != 'undefined')
 {
 window.addEventListener('load', fn, false);
 }
 else if (typeof document.addEventListener != 'undefined')
 {
 document.addEventListener('load', fn, false);
 }
 else if (typeof window.attachEvent != 'undefined')
 {
 window.attachEvent('onload', fn);
 }
 else
 {
 return false;
 }

 return true;
};




function attachEventListener(target, eventType, functionRef, capture)
{
 if (typeof target.addEventListener != "undefined")
 {
 target.addEventListener(eventType, functionRef, capture);
 }
 else if (typeof target.attachEvent != "undefined")
 {
 target.attachEvent("on" + eventType, functionRef);
 }
 else
 {
 return false;
 }

 return true;
};