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 = "nav/home_on.gif";
    home_off.src = "nav/home_off.gif";
	
    contact_on = new Image();
    contact_off = new Image();
    contact_on.src = "nav/contact_on.gif";
    contact_off.src = "nav/contact_off.gif";
    
    management_on = new Image();
    management_off = new Image();
    management_on.src = "nav/management_on.gif";
    management_off.src = "nav/management_off.gif";
    
    portfolio_on = new Image();
    portfolio_off = new Image();
    portfolio_on.src = "nav/portfolio_on.gif";
    portfolio_off.src = "nav/portfolio_off.gif";

    login_on = new Image();
    login_off = new Image();
    login_on.src = "nav/client_login_on.gif";
    login_off.src = "nav/client_login_off.gif";
    
    careers_on = new Image();
    careers_off = new Image();
    careers_on.src = "nav/careers_on.gif";
    careers_off.src = "nav/careers_off.gif";
	
    services_on = new Image();
    services_off = new Image();
    services_on.src = "nav/services_on.gif";
    services_off.src = "nav/services_off.gif";
	
    info_on = new Image();
    info_off = new Image();
    info_on.src = "images/contact_on.gif";
    info_off.src = "images/contact_off.gif";
	
    pr_on = new Image();
    pr_off = new Image();
    pr_on.src = "nav/news_on.gif";
    pr_off.src = "nav/news_off.gif";

    more_on = new Image();
    more_off = new Image();
    more_on.src = "images/more_info_on.gif";
    more_off.src = "images/more_info_off.gif";
	
    hraddy_on = new Image();
    hraddy_off = new Image();
    hraddy_on.src = "images/hr_addy_on.gif";
    hraddy_off.src = "images/hr_addy_off.gif";
	
    testimonials_on = new Image();
    testimonials_off = new Image();
    testimonials_on.src = "nav/testimonials_on.gif";
    testimonials_off.src = "nav/testimonials_off.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;
	}
}