if (document.images) {
var homeon = new Image(54, 24);
homeon.src = "media/home_on.gif";
var homeoff = new Image(54, 24);
homeoff.src = "media/home_off.gif";
var homedn = new Image(54, 24);
homedn.src = "media/home_dn.gif";
			
var aboutuson = new Image(84, 24);
aboutuson.src = "media/aboutus_on.gif";
var aboutusoff = new Image(84, 24);
aboutusoff.src = "media/aboutus_off.gif";
var aboutusdn = new Image(84, 24);
aboutusdn.src = "media/aboutus_dn.gif";
			
var projectson = new Image(166, 24);
projectson.src = "media/projects_on.gif";
var projectsoff = new Image(166, 24);
projectsoff.src = "media/projects_off.gif";
var projectsdn = new Image(166, 24);
projectsdn.src = "media/projects_dn.gif";
			
var forsaleon = new Image(130, 24);
forsaleon.src = "media/forsale_on.gif";
var forsaleoff = new Image(130, 24);
forsaleoff.src = "media/forsale_off.gif";
var forsaledn = new Image(130, 24);
forsaledn.src = "media/forsale_dn.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;}
}