// JavaScript Document

//windows.onload Listener
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 {
		var oldfn = window.onload;
		if (typeof window.onload != 'function') {
			window.onload = fn;
		} else {
			window.onload = function() {
				oldfn();
				fn();
			};
		}
	}
}
/*addLoadListener(firstFunction);
addLoadListener(secondFunction);
addLoadListener(twentyThirdFunction);
*/

//Add Event Listener
function addEvent(target, eventType, evenHandler){
	if(target.addEventListener)
		target.addEventListener(eventType, eventHandler, false);
	else if (target.attachEvent)
		target.attachEvent('on'+eventType, eventHandler);
}

//Remove Event Listener
function removeEvent(target, eventType, evenHandler){
	if(target.removeEventListener)
		target.removeEventListener(eventType, eventHandler, false);
	else if (target.detachEvent)
		target.detachEvent('on'+eventType, eventHandler);
}