function addEvent(ev, obj, act)
{
	if (typeof obj != 'object') {
		return false;
	}
	
	if (obj.addEventListener)
	{
		res = obj.addEventListener(ev, act, false);
	}
	else if (obj.attachEvent)
	{
		obj.attachEvent('on'+ev, act);
	}
	else
	{
		return false;
	}
}