cm = null;
hide_delay = 500;
tstat = 0;

isNS4 = (document.layers) ? true : false;
isIE4 = (document.all && !document.getElementById) ? true : false;
isIE5 = (document.all && document.getElementById) ? true : false;
isNS6 = (!document.all && document.getElementById) ? true : false;

function switchDiv(objElement, bolVisible){
	if(isNS4 || isIE4){
		if(!bolVisible) {
       		objElement.visibility = "hidden"
		} else {
			objElement.visibility = "visible"
		}     
	} else if (isIE5 || isNS6) {
		if(!bolVisible){
			objElement.style.display = "none";
		} else {
			objElement.style.display = "";
        }
	}
	return 1;
}

function getPos(el, sProp) {
	var iPos = 0;
	while (el != null) {
		iPos += el["offset" + sProp]
		el = el.offsetParent
	}
	return iPos
}

function getelementbyid(myid) {
	if (isNS4) {
		objElement = document.layers[myid];
	} else if (isIE4) {
		objElement = document.all[myid];
		} else if (isIE5 || isNS6) {
			objElement = document.getElementById(myid);
	}
	return(objElement);
}

function show(el, m) {
	if (cm != null) {
		switchDiv(cm, false);
	}

	if (m != null) {
		m = getelementbyid(m);
		m.style.left = getPos(el, "Left")+"px";
		m.style.top =  getPos(el, "Top")+el.offsetHeight+"px";
		switchDiv(m, true);
		cm = m;
	}
}

function hidemenu() {
	timer1 = setTimeout("show(null,null)", hide_delay);
	tstat = 1;
	return 1;
}

function cancelhide() {
	if (tstat == 1) {
		clearTimeout(timer1);
		tstat = 0;
	}
	return 1;
}