if (navigator.appVersion.substring(0,1) >= 3) {

    banner1 = new Image;
    banner1.src = "/images/o-firme1.gif";
    bannerover1 = new Image;
    bannerover1.src = "/images/o-firme2.gif";

    banner2 = new Image;
    banner2.src = "/images/eshop1.gif";
    bannerover2 = new Image;
    bannerover2.src = "/images/eshop2.gif";

    banner3 = new Image;
    banner3.src = "/images/cenik1.gif";
    bannerover3 = new Image;
    bannerover3.src = "/images/cenik2.gif";
    
    banner4 = new Image;
    banner4.src = "/images/servis1.gif";
    bannerover4 = new Image;
    bannerover4.src = "/images/servis2.gif";

    banner5 = new Image;
    banner5.src = "/images/dodavatele1.gif";
    bannerover5 = new Image;
    bannerover5.src = "/images/dodavatele2.gif";

    banner6 = new Image;
    banner6.src = "/images/akce1.gif";
    bannerover6 = new Image;
    bannerover6.src = "/images/akce2.gif";
    
    banner7 = new Image;
    banner7.src = "/images/kontakty1.gif";
    bannerover7 = new Image;
    bannerover7.src = "/images/kontakty2.gif";

	}

	function navmouseover(imgid,imgnew) {
	        if (navigator.appVersion.substring(0,1) >= 3) {
	              document.images[imgid].src=eval(imgnew + ".src");
	        }
	}