var remember = new Array();
var remember2 = new Array();
var checkIt;
var DHTML = (document.getElementById || document.all || document.layers);

function show(name,lvl,obj) {
	if (!DHTML) return;
	// checkUserInput();
	if (remember[lvl] && remember[lvl] == name) return;
	if (remember[lvl]) {
		closeAll(lvl);
	}
	if (name) {
		var x = getObj(name);
		x.visibility = 'visible';
	}
	remember[lvl] = name;
	if (obj.parentNode) y = obj.parentNode;
	else if (obj.parentElement) y = obj.parentElement;
	else return;
	if (y.className) return;
	y.className = 'over';
	if (remember2[lvl]) remember2[lvl].className = '';
	remember2[lvl] = y;
}

function closeAll(lvl) {
	for (i=remember.length - 1;i>=lvl;i--) {
		if (remember[i]) {
			var x = getObj(remember[i]);
			x.visibility = 'hidden';
		}
		remember[i] = null;
		if (remember2[i]) {
			remember2[i].className = '';
			remember2[i] = null;
		}
	}
}

function checkUserInput() {
	if (checkIt) clearTimeout(checkIt);
	checkIt = setTimeout('closeAll(1)',1000);
}

function getObj(name) {
	if (document.getElementById) {
		return document.getElementById(name).style;
	} else if (document.all) {
		return document.all[name].style;
	} else if (document.layers) {
		return document.layers[name];
	} else {
		return false;
	}
}