//*** This code is copyright 2003 by Gavin Kistner, !@phrogz.net
//*** It is covered under the license viewable at http://phrogz.net/JS/_ReuseLicense.txt
//*** Reuse or modification is free provided you abide by the terms of that license.
//*** (Including the first two lines above in your source code satisfies the conditions.)

function StopPropagation(evt){
	if (!evt) return false;
	evt.cancelBubble=true;
	if (evt.stopPropagation) evt.stopPropagation();
	return true;
}