// Detect if browser is Netscape 3 + or IE 4 +.
	bName = navigator.appName;
	bVer = parseInt(navigator.appVersion);
  	if ((bName == "Netscape" && bVer >= 3) || 
        (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3"; 
    else br = "n2";

    if (br== "n3") {           
    img1on = new Image();           
    img1on.src = "../../../images/home-over.gif";
		img1txt = new Image();
		img1txt.src = "../../../images/home-text.gif";
		img2on = new Image();           
    img2on.src = "../../../images/about-over.gif";
		img2txt = new Image();
		img2txt.src = "../../../images/about-text.gif";
		img3on = new Image();           
    img3on.src = "../../../images/advertise-over.gif";
		img3txt = new Image();
		img3txt.src = "../../../images/advertise-text.gif";
		img4on = new Image();           
    img4on.src = "../../../images/careers-over.gif";
		img4txt = new Image();
		img4txt.src = "../../../images/careers-text.gif";
		img5on = new Image();           
    img5on.src = "../../../images/resume-over.gif";
		img5txt = new Image();
		img5txt.src = "../../../images/resume-text.gif";
		img6on = new Image();           
    img6on.src = "../../../images/articles-over.gif";
		img6txt = new Image();
		img6txt.src = "../../../images/articles-text.gif";
		img7on = new Image();           
    img7on.src = "../../../images/events-over.gif";
		img7txt = new Image();
		img7txt.src = "../../../images/events-text.gif";
		img8on = new Image();           
    img8on.src = "../../../images/contact-over.gif";
		img8txt = new Image();
		img8txt.src = "../../../images/contact-text.gif";
		img9on = new Image();           
    img9on.src = "../../../images/subscribe-over.gif";
		img9txt = new Image();
		img9txt.src = "../../../images/subscribe-text.gif";
		img10on = new Image();           
    img10on.src = "../../../images/altformat-over.gif";
		img10txt = new Image();
		img10txt.src = "../../../images/altformat-text.gif";
		
    img1off = new Image();           
    img1off.src = "../../../images/home.gif"; 
		img2off = new Image();           
    img2off.src = "../../../images/about.gif";
		img3off = new Image();           
    img3off.src = "../../../images/advertise.gif";
		img4off = new Image();           
    img4off.src = "../../../images/careers.gif";
		img5off = new Image();           
    img5off.src = "../../../images/resume.gif";
		img6off = new Image();           
    img6off.src = "../../../images/articles.gif";
		img7off = new Image();           
    img7off.src = "../../../images/events.gif";
		img8off = new Image();           
    img8off.src = "../../../images/contact.gif";
		img9off = new Image();           
    img9off.src = "../../../images/subscribe.gif";
		img10off = new Image();           
    img10off.src = "../../../images/altformat.gif";

		defaulttext = new Image();
		defaulttext.src = '../../../images/space.gif';

	}

// Function to "activate" images.
function imgAct(imgName) {
    if (br == "n3") {
    document[imgName].src = eval(imgName + "on.src");
    document.deftext.src = eval(imgName + "txt.src");
    }
}

// Function to "deactivate" images.
function imgInact(imgName) {
    if (br == "n3") {
    document[imgName].src = eval(imgName + "off.src");
		document.deftext.src = defaulttext.src;
    }
}