if (document.images) {

homepageon = new Image(117, 39);
homepageon.src = "/images/nav/homepage-on.gif";
homepageoff = new Image(117, 39);
homepageoff.src = "/images/nav/homepage-off.gif";

abouton = new Image(102, 39);
abouton.src = "/images/nav/about-on.gif";
aboutoff = new Image(102, 39);
aboutoff.src = "/images/nav/about-off.gif";

serviceson = new Image(94, 39);
serviceson.src = "/images/nav/services-on.gif";
servicesoff = new Image(94, 39);
servicesoff.src = "/images/nav/services-off.gif";

softwareon = new Image(104, 39);
softwareon.src = "/images/nav/software-on.gif";
softwareoff = new Image(104, 39);
softwareoff.src = "/images/nav/software-off.gif";

iton = new Image(184, 39);
iton.src = "/images/nav/it-on.gif";
itoff = new Image(184, 39);
itoff.src = "/images/nav/it-off.gif";

testimonialson = new Image(124, 39);
testimonialson.src = "/images/nav/testimonials-on.gif";
testimonialsoff = new Image(124, 39);
testimonialsoff.src = "/images/nav/testimonials-off.gif";

supporton = new Image(95, 39);
supporton.src = "/images/nav/support-on.gif";
supportoff = new Image(95, 39);
supportoff.src = "/images/nav/support-off.gif";

contacton = new Image(133, 39);
contacton.src = "/images/nav/contact-on.gif";
contactoff = new Image(133, 39);
contactoff.src = "/images/nav/contact-off.gif";

}

function img_act(imgName) {
if (document.images) {
 imgOn = eval(imgName + "on.src");
 document [imgName].src = imgOn;
}
}

function img_inact(imgName) {
if (document.images) {
 imgOff = eval(imgName + "off.src");
 document [imgName].src = imgOff;
}
}