function simpleWindow(url,windowName,width,height) {
    windowFeatures = "scrollbars=yes,resizable=yes,menubar=no,status=no";
    windowFeatures = windowFeatures + ",width="+width; 
    windowFeatures = windowFeatures + ",height="+height; 
    newWindow = window.open(url,windowName,windowFeatures);
    setTimeout("newWindow.focus()",125);
}
function buttonClass(obj, new_style) {
    obj.className = new_style;
}

function menuTop(id,mode,obj) {
	try {
		if(mode=='show') {
			document.getElementById(id).style.visibility='visible';
			//obj.className='popupMenuTopHover';
		} else {
			document.getElementById(id).style.visibility='hidden';
			//obj.className='popupMenuTop';
		}
	} catch(e) {
		// There may not be a popup for a given menu item. So on error, just catch and consume.
	}
}