// drop-down menu functions
//(c) 2005 QSC Audio
menuvisible = false;
lastmenu = "";
function showSub(submenu){
	if (document.getElementById ) {
			document.getElementById(submenu).style.visibility="visible";	
			menuvisible = true;
			lastmenu = submenu;
	} else {
		return false;
	}	
}
function hideSub(submenu){
	if (document.getElementById ) {
			document.getElementById(submenu).style.visibility='hidden';	
			menuvisible = false;
			lastmenu = "";
	} else {
		return false;
	}	
}
function hideActiveMenus(){
	// not used
	return false;	
}
function popwin(url,winH,winV){
	params = "width=" + winH + ",height=" + winV + ",addressbar=no,statusbar=no,menubar=no";
	newwin = window.open(url,'Window',params);
	newwin.focus();	
}