function subOn(thing) {
	document.getElementById(thing).style.background="#cccccc" 
	document.getElementById(thing).style.zIndex = 1;
}
function subOff(thing) {
	document.getElementById(thing).style.background="#ffffff" 
	document.getElementById(thing).style.zIndex = 0;
}
function subOffSecNav(thing) {
	document.getElementById(thing).style.zIndex = 0;
}


function hide(menuId) {
	dropmenuobj=document.getElementById(menuId);
	dropmenuobj.style.visibility = 'hidden';
	dropmenuobj.style.zIndex = 0;
}
function show(menuId) {
	dropmenuobj=document.getElementById(menuId);
	dropmenuobj.style.visibility = 'visible';
	dropmenuobj.style.zIndex = 10;
}