// Form navigation script
	
	function drop_menu(form) {
		var myindex = form.dest.selectedIndex
		window.open(form.dest.options[myindex].value, target="_top");
	}               

	
	// Disclaimer popUp
	function disclaimer() {
		alert("You are about to leave the Department of Energy (DOE) Web site. The DOE provides links to other Internet sites as a service to its users. References to these links or to other nongovernmental entities, products, services or information does not constitute an endorsement or recommendation by the DOE or any of its agencies or employees.")
	}

 
	// this is the script for the drop-down menus

sfHover = function() {     
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
	sfEls[i].onmouseover=function() {
	this.className+=" sfhover";
	}
	sfEls[i].onmouseout=function() {
	this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
	}
	} 
	} 
	if (window.attachEvent) window.attachEvent("onload", sfHover);