var timerID = null;
var timerOn = false;
var timecount = 250;
var what = null;
var newbrowser = true;
var check = false;

function init()
{
	//alert("Running Init");
    if (document.layers) {
        //  alert ("Running Netscape 4");
        layerRef="document.layers";
        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;
}

// Turns the layers on and off
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"');
        }
	}
    else {
		// alert ("Please wait for the page to finish loading.");
        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 {
		// alert ("Please wait for the page to finish loading.");
        return;
    }
}

function hideAll() {
	try {
		hideLayer('newsmenu');
		hideLayer('aboutmenu');
		hideLayer('productmenu');
		hideLayer('servicemenu');
	}
	catch (e) {
	}
	try {
		hideLayer('newsmenu2');
		hideLayer('aboutmenu2');
		hideLayer('productmenu2');
	}
	catch (e) {
	}
}

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

	}
}

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