// function to add event listener regardless of browser 
// el is the DOM element, 
// eType is the event type, 
// fn is the function to execute and uC is the propogation type - true to propogate, false to not
function addEvent(el, eType, fn, uC) {
	
	if (el.addEventListener) {
		el.addEventListener(eType, fn, uC);
	}
	// IE Specific
	else if (el.attachEvent) {
		el.attachEvent('on' + eType, fn);
	}
	else {
		el['on' + eType] = fn;
	}
}