// ie5 fix
if(document.all&&!document.getElementById){document.getElementById=function(id){return document.all(id);}}

add_event=function(o,e,f) {
	if(o.addEventListener) {
		o.addEventListener(e,f,true);
		return true;
	} else if(o.attachEvent) {
		return o.attachEvent("on"+e,f);
	} else {
		return false;
	}
}