if (document.images) {           

            nav_01on = new Image();
            nav_01on.src = "/images/navigation/01_home_on.gif";
            nav_01off = new Image();
            nav_01off.src = "/images/navigation/01_home_off.gif";

			nav_02on = new Image();
            nav_02on.src = "/images/navigation/02_about_on.gif";
            nav_02off = new Image();
            nav_02off.src = "/images/navigation/02_about_off.gif";

			nav_03on = new Image();
            nav_03on.src = "/images/navigation/03_apt_on.gif";
            nav_03off = new Image();
            nav_03off.src = "/images/navigation/03_apt_off.gif";

			nav_04on = new Image();
            nav_04on.src = "/images/navigation/04_dir_on.gif";
            nav_04off = new Image();
            nav_04off.src = "/images/navigation/04_dir_off.gif";

			nav_05on = new Image();
            nav_05on.src = "/images/navigation/05_lt_on.gif";
            nav_05off = new Image();
            nav_05off.src = "/images/navigation/05_lt_off.gif";

			nav_06on = new Image();
            nav_06on.src = "/images/navigation/06_sp_on.gif";
            nav_06off = new Image();
            nav_06off.src = "/images/navigation/06_sp_off.gif";

			nav_07on = new Image();
            nav_07on.src = "/images/navigation/07_ct_on.gif";
            nav_07off = new Image();
            nav_07off.src = "/images/navigation/07_ct_off.gif";

			nav_08on = new Image();
            nav_08on.src = "/images/navigation/08_info_on.gif";
            nav_08off = new Image();
            nav_08off.src = "/images/navigation/08_info_off.gif";


        }


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



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

}