isamap = new Object();
isamap[1] = "_ov"
isamap[2] = "_ot"

function isimgact(id, act)
{
        if(document.images) document.images[id].src = eval( "isimages." + id + isamap[act] + ".src");
}

if (document.images) { // ensure browser can do JavaScript rollovers.
isimages = new Object();
isimages.img1_df = new Image();
isimages.img1_df.src = "/images/menu/about_off.gif";

isimages.img1_ov = new Image();
isimages.img1_ov.src = "/images/menu/about_on.gif";

isimages.img1_ot = new Image();
isimages.img1_ot.src = "/images/menu/about_off.gif";

isimages.img2_df = new Image();
isimages.img2_df.src = "/images/menu/news_off.gif";

isimages.img2_ov = new Image();
isimages.img2_ov.src = "/images/menu/news_on.gif";

isimages.img2_ot = new Image();
isimages.img2_ot.src = "/images/menu/news_off.gif";

isimages.img3_df = new Image();
isimages.img3_df.src = "/images/menu/health_off.gif";

isimages.img3_ov = new Image();
isimages.img3_ov.src = "/images/menu/health_on.gif";

isimages.img3_ot = new Image();
isimages.img3_ot.src = "/images/menu/health_off.gif";

isimages.img4_df = new Image();
isimages.img4_df.src = "/images/menu/products_off.gif";

isimages.img4_ov = new Image();
isimages.img4_ov.src = "/images/menu/products_on.gif";

isimages.img4_ot = new Image();
isimages.img4_ot.src = "/images/menu/products_off.gif";

isimages.img5_df = new Image();
isimages.img5_df.src = "/images/menu/staff_off.gif";

isimages.img5_ov = new Image();
isimages.img5_ov.src = "/images/menu/staff_on.gif";

isimages.img5_ot = new Image();
isimages.img5_ot.src = "/images/menu/staff_off.gif";

isimages.img6_df = new Image();
isimages.img6_df.src = "/images/menu/patient_off.gif";

isimages.img6_ov = new Image();
isimages.img6_ov.src = "/images/menu/patient_on.gif";

isimages.img6_ot = new Image();
isimages.img6_ot.src = "/images/menu/patient_off.gif";

isimages.img7_df = new Image();
isimages.img7_df.src = "/images/menu/contact_off.gif";

isimages.img7_ov = new Image();
isimages.img7_ov.src = "/images/menu/contact_on.gif";

isimages.img7_ot = new Image();
isimages.img7_ot.src = "/images/menu/contact_off.gif";

}