// JavaScript Document
butHover = function() {
	var but = document.getElementById("speakers").getElementsByTagName("LI");
	for (var i=0; i<but .length; i++) {
		 but [i].onmouseover=function() {
			this.className+=" buthover";
		}
		 but [i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" buthover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", butHover);