var activeSub=0;
var SubNum=0;

//Define global variables
var timerID = null;
var timerOn = false;
var timecount = 1000;
var what = null;
var newbrowser = true;
var check = false;

function init() {
	if (document.layers) {
		//  alert ("Running Netscape 4");
		layerRef="document";
		styleSwitch="";
		visibleVar="show";
		screenSize = window.innerWidth;
		what ="ns4";
		
	} else if (document.all){
		//  alert ("Running IE");
		layerRef="document.all";
		styleSwitch=".style";
		visibleVar="visible";
		screenSize = document.body.clientWidth + 18;
		what ="ie";
	
	} else if (document.getElementById){
		//  alert ("Running Netscape 6");
		layerRef="document.getElementByID";
		styleSwitch=".style";
		visibleVar="visible";
		what="moz";
		  
	} else {
		//alert("Older than 4.0 browser.");
		what="none";
		newbrowser = false;
	}
		  
	check = true;
}

function showLayer(layerName) {
	if (check) {
		if (what =="none"){
        	return;
        } else if (what == "moz") {
        	document.getElementById(layerName).style.visibility="visible";
		} else {
			eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
			if (what == "ns4") {
				eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.top="90"');
			}
		}
	} else {
        return;
	}
}

function hideLayer(layerName) {
	if (check) {
		if (what =="none") {
			return;
		} else if (what == "moz") {
			document.getElementById(layerName).style.visibility="hidden";
		} else {
			eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
		}
	} else {
		return;
	}
}

function hideAll() {
	hideLayer('products');
	hideLayer('comp');
}

function startTime() {
	if (timerOn == false) {
		timerID=setTimeout( "hideAll()" , timecount);
		timerOn = true;
	}
}

function stopTime() {
	if (timerOn) {
		clearTimeout(timerID);
		timerID = null;
		timerOn = false;
	}
}