/*

var ie4 = (document.all) ? true : false;
var ns4 = (document.layers) ? true : false;
var ns6 = (document.getElementById && !document.all) ? true : false;


function hidelayer(lay) {
try {
	if (ie4) {document.all[lay].style.visibility = "hidden";}
	if (ns4) {document.layers[lay].visibility = "hide";}
	if (ns6) {document.getElementById([lay]).style.visibility = "hidden";}
	}
catch(er) {//do nothing
	};
}
function showlayer(lay) {
try {
	if (ie4) {document.all[lay].style.visibility = "visible";}
	if (ns4) {document.layers[lay].visibility = "show";}
	if (ns6) {document.getElementById([lay]).style.visibility = "visible";}
	}
catch(er) {//do nothing
	};	
}

function setClass(myID,myClass){
if (ie4) {document.all[myID].className = myClass;}
if (ns4) {document.layers[myID].className = myClass;}
if (ns6) {document.getElementById([myID]).className = myClass;}
}

*/

var ie4 = (document.all) ? true : false;
var ns4 = (document.layers) ? true : false;
var ns6 = (document.getElementById && !document.all) ? true : false;


function hidelayer(lay) {
	try {
		if (ie4) {document.all[lay].style.visibility = "hidden";}
		if (ns4) {document.layers[lay].visibility = "hide";}
		if (ns6) {document.getElementById([lay]).style.visibility = "hidden";}
	}
		catch(er) {//do nothing
	};
}

function showlayer(lay) {
	if(hasMoved == true){
		try {
			if (ie4) {document.all[lay].style.visibility = "visible";}
			if (ns4) {document.layers[lay].visibility = "show";}
			if (ns6) {document.getElementById([lay]).style.visibility = "visible";}
		}
		catch(er) {//do nothing
		};
	};	
}

function setClass(myID,myClass){
if (ie4) {document.all[myID].className = myClass;}
if (ns4) {document.layers[myID].className = myClass;}
if (ns6) {document.getElementById([myID]).className = myClass;}
}


var startX = 0;
var startY = 0;
var hasMoved = false;

var IE = document.all?true:false;
document.onmousemove = getMouseXY;

function myLoadMouseFunction(){
	if(IE){
		startX = event.clientX + document.body.scrollLeft;
		startY = event.clientY + document.body.scrollTop;
	} else {
		startX = e.pageX;
		startY = e.pageY;
	}
}


function getMouseXY(e){
	if(IE){
		tempX = event.clientX + document.body.scrollLeft;
		tempY = event.clientY + document.body.scrollTop;
	} else {
		tempX = e.pageX;
		tempY = e.pageY;
	};
	
	if (tempX == startX && tempY == startY){
		hasMoved = false;
	} else {
		hasMoved = true;
		startX = 0;
		startY = 0;
		document.onmousemove = null;
	};
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImage(imageName,imageURL){
document[imageName].src = imageURL
}