<!--
if (document.images) {

// Button over states
ioson = new Image();
ioson.src = "imgs/ios-btn-ovr.gif";
linkson = new Image();
linkson.src = "imgs/links-btn-ovr.gif";
sitemapon = new Image();
sitemapon.src = "imgs/sitemap-btn-ovr.gif";


// Button resting states
iosoff = new Image();
iosoff.src = "imgs/ios-btn.gif";
linksoff = new Image();
linksoff.src = "imgs/links-btn.gif";
sitemapoff = new Image();
sitemapoff.src = "imgs/sitemap-btn.gif";
}

function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}
//-->