imgAbout_on = new Image(117,151);
imgAbout_on.src="/templates/images/about-selected.gif";
imgAbout_off = new Image(117,151);
imgAbout_off.src="/templates/images/about.gif";
  
imgLighting_on = new Image(82,151);
imgLighting_on.src="/templates/images/lighting-selected.gif";
imgLighting_off = new Image(82,151);
imgLighting_off.src="/templates/images/lighting.gif";

imgFurniture_on = new Image(87,151);
imgFurniture_on.src="/templates/images/furniture-selected.gif";
imgFurniture_off = new Image(87,151);
imgFurniture_off.src="/templates/images/furniture.gif";

function over_image(parm_name)
{
    document[parm_name].src = eval(parm_name + "_on.src");
}
function off_image(parm_name)
{
    document[parm_name].src = eval(parm_name + "_off.src");
}