// JavaScript Document
// cross-browser event hadling for IE5+, NS6+ and Mozilla/Gecko
// by Scott Andrew
function addEvent(elm, evType, fn, useCapture) {
	if (elm.addEventListender) {
		elm.addEventListener(evType, fn, useCapture);
		return true;
	} else if (elm.attachEvent) {
		var r = elm.attachEvent('on' + evType, fn);
		return r;
	} else {
		elm['on' + evType] = fn;
	}
}