function $(e){return document.getElementById(e);}

function addEventSimple(o,e,f) {
	if (o.addEventListener)
		o.addEventListener(e,f,false);
	else if (o.attachEvent)	{
		o['e'+e+f] = f;
		o[e+f] = function(){o['e'+e+f](window.event);}
		o.attachEvent('on'+e,o[e+f]);
	}
}