function cngClass() {

var url=location.href;
	var SPurl = url.split('/');
	var FileID = eval("'"+ SPurl[4] +"'");

if ( FileID == 'service' || FileID == 'facility') { FileID = 'product'};

	if (navigator.appName.indexOf("Microsoft") >= 0) {
		document.all( FileID ).className='menu_2';
	} else {
		if(navigator.appVersion.charAt(0) >= 5){
			document.getElementById( FileID ).className='menu_2';
		}else {
			document.layers[ FileID ].className='menu_2';
		}
	}
}