var loaded = false;
var initState = false;
var hideInt = 200;
var menuItems = 8;

var ns4 = (document.layers);
var ie4 = (document.all);
var ns6 = (document.getElementById);
var ie5mac = ((window.navigator.userAgent.indexOf('MSIE 5.2') >= 0) && (window.navigator.userAgent.indexOf('Mac') >= 0))

var xPos;

function setVis(layerID, boolval) {
	if (ie4) { if(document.all[layerID]) document.all[layerID].style.visibility = boolval ? 'visible' : 'hidden'; }
	else if (ns4) { if(document.layers[layerID]) document.layers[layerID].visibility = boolval ? 'show' : 'hide'; }
	else if (ns6) { if(document.getElementById(layerID)) document.getElementById(layerID).style.visibility = boolval ? 'visible' : 'hidden'; };
}

function setLeft(layerID, val) {
	if (ie4) { if(document.all[layerID]) document.all[layerID].style.left = val; }
	else if (ns4) { if(document.layers[layerID]) document.layers[layerID].left = val; }
	else if (ns6) { if(document.getElementById(layerID)) document.getElementById(layerID).style.left = val };
}

function getWidth() {
	if (document.documentElement && document.documentElement.clientWidth) return document.documentElement.clientWidth;
	else if (document.body && document.body.clientWidth) return document.body.clientWidth;
}

function detectSize() {
	if(loaded && ie5mac) location.replace(location.href);
	
	var aw = 0;
	aw = getWidth();
//	alert(aw);
	xPos = 0;
	if(aw > 770) xPos = Math.round((aw - 770) / 2);

	setLeft("layer1", xPos + 195);
	setLeft("layer2", xPos + 234);
	setLeft("layer3", xPos + 297);
	setLeft("layer4", xPos + 362);
	setLeft("layer5", xPos + 451);
	setLeft("layer6", xPos + 553);
	setLeft("layer7", xPos + 603);
	setLeft("layer8", xPos + 666);
	setLeft("layer9", xPos + 669);
	
	loaded = true;
}

function hideLayers() {
	for (var i = 1; i <= menuItems; i++) setVis("layer" + i, false);
}
	
function showMenu(menuID) {
	if (initState) clearTimeout(TID)
	else initState = true;
  
  	hideLayers();
	setVis("layer" + menuID, true);	
}
		
function closeMe(obj) {
	timeoutString = "hideLayers()"
	if (ns6) TID = ns6 ? window.setTimeout(timeoutString, hideInt) : setTimeout(timeoutString, hideInt);
}