isamap = new Object();
isamap[0] = "_df"
isamap[1] = "_ov"
isamap[2] = "_ot"
isamap[3] = "_dn"

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.dental201025_df = new Image();
isimages.dental201025_df.src = "../images/dental2010ladent_family_den.jpg";

isimages.dental201025_ov = new Image();
isimages.dental201025_ov.src = "../images/dental2010ladent_family_dov.jpg";

isimages.dental201036_df = new Image();
isimages.dental201036_df.src = "../images/dental2010home.jpg";

isimages.dental201036_ov = new Image();
isimages.dental201036_ov.src = "../images/dental2010homeov.jpg";

isimages.dental201037_df = new Image();
isimages.dental201037_df.src = "../images/dental2010contact_us.jpg";

isimages.dental201037_ov = new Image();
isimages.dental201037_ov.src = "../images/dental2010contact_usov.jpg";

isimages.dental201038_df = new Image();
isimages.dental201038_df.src = "../images/dental2010staff.jpg";

isimages.dental201038_ov = new Image();
isimages.dental201038_ov.src = "../images/dental2010staffov.jpg";

isimages.dental201039_df = new Image();
isimages.dental201039_df.src = "../images/dental2010services.jpg";

isimages.dental201039_ov = new Image();
isimages.dental201039_ov.src = "../images/dental2010servicesov.jpg";

isimages.dental201040_df = new Image();
isimages.dental201040_df.src = "../images/dental2010dentures.jpg";

isimages.dental201040_ov = new Image();
isimages.dental201040_ov.src = "../images/dental2010denturesov.jpg";

isimages.dental201041_df = new Image();
isimages.dental201041_df.src = "../images/dental2010mobile_unit.jpg";

isimages.dental201041_ov = new Image();
isimages.dental201041_ov.src = "../images/dental2010mobile_unitov.jpg";

isimages.dental201042_df = new Image();
isimages.dental201042_df.src = "../images/dental2010resources.jpg";

isimages.dental201042_ov = new Image();
isimages.dental201042_ov.src = "../images/dental2010resourcesov.jpg";

isimages.dental201072_df = new Image();
isimages.dental201072_df.src = "../images/dental2010ad_world.jpg";

isimages.dental201072_ov = new Image();
isimages.dental201072_ov.src = "../images/dental2010ad_worldov.jpg";

}