function imgOn(imgName) {
                if (document.images) {
                    document[imgName].src = eval(imgName + "on.src");
                }
       }
function imgOff(imgName) {
                if (document.images) {
                    document[imgName].src = eval(imgName + "off.src");
                }
        }
        if (document.images) {
	   img1on = new Image();img1on.src = "menu/hlavni-strana2.gif";
	   img2on = new Image();img2on.src = "menu/svatebni-foto2.gif";
	   img3on = new Image();img3on.src = "menu/panoramata-3602.gif";
	   img4on = new Image();img4on.src = "menu/skolni-foto2.gif";
	   img5on = new Image();img5on.src = "menu/reportazni-foto2.gif";
	   img6on = new Image();img6on.src = "menu/cenik2.gif";
	   img7on = new Image();img7on.src = "menu/kontakt2.gif";
	   img8on = new Image();img8on.src = "menu/objednavka2.gif";
   	   img9on = new Image();img9on.src = "menu/fotogalerie2.gif";
   	   img10on = new Image();img10on.src = "menu/fototechnika2.gif";
	
           img1off = new Image();img1off.src = "menu/hlavni-strana.gif";
           img2off = new Image();img2off.src = "menu/svatebni-foto.gif";
           img3off = new Image();img3off.src = "menu/panoramata-360.gif";
           img4off = new Image();img4off.src = "menu/skolni-foto.gif";
           img5off = new Image();img5off.src = "menu/reportazni-foto.gif";
           img6off = new Image();img6off.src = "menu/cenik.gif";
           img7off = new Image();img7off.src = "menu/kontakt.gif";
           img8off = new Image();img8off.src = "menu/objednavka.gif";
           img9off = new Image();img9off.src = "menu/fotogalerie.gif";          
	   	   img10off = new Image();img10off.src = "menu/fototechnika.gif";   
        }