function preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}

function swapImgRestore() { //v3.0
  var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function swapImage() { //v3.0
  var i,j=0,x,a=swapImage.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=findObj(a[i]))!=null){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}




var ie4 = document.all && navigator.userAgent.indexOf("Opera") == -1;
var ns6 = document.getElementById && !document.all;
var ns4 = document.layers;

function setup() {
	if(ie4) {
		productsNav = products_nav.style; 
		
	} else if(ns6) {
		productsNav = document.getElementById("products_nav").style; 
			
	} else if(ns4) {
		productsNav = document.products_nav; 
	}
	setupDone = 1;
}


<!--
var lastImg = "0";
var setupDone = "0";

// Create image objects, preload all active and inactive images.
{ 
	products0 = new Image(); products0.src = "images/products_0.gif";

	products1 = new Image(); products1.src = "images/products_1.gif";
}



// Function to "activate" images.
function over(imgName) {
	if (lastImg != '0')
		document[lastImg].src = eval(lastImg + "0.src");
	
	document[imgName].src = eval(imgName + "1.src");
	
	if (setupDone == 1) {
		if (lastImg != '0')
			eval(lastImg + "Nav").visibility = "hidden";
			
		eval(imgName + "Nav").visibility = "visible";
		lastImg = imgName;
	}
}

// Function to "deactivate" images.
function out(imgName) {
	document[imgName].src = eval(imgName + "0.src");
		if (setupDone == 1)
			eval(imgName + "Nav").visibility = "hidden";
}

function outTop() {
	if (lastImg != '0')
		out(lastImg);
}



//-->