function swtch(num, imgname) {
document[imgname].src = img[num].src;
}
img = new Array();
img[1]  = new Image();
img[1].src = "images/menu-home.gif";
img[2]  = new Image();
img[2].src = "images/menu-home2.gif";

img[3]  = new Image();
img[3].src = "images/menu-menu.gif";
img[4]  = new Image();
img[4].src = "images/menu-menu2.gif";

img[5]  = new Image();
img[5].src = "images/menu-specialni-menu.gif";
img[6]  = new Image();
img[6].src = "images/menu-specialni-menu2.gif";

img[7]  = new Image();
img[7].src = "images/menu-fotogalerie.gif";
img[8]  = new Image();
img[8].src = "images/menu-fotogalerie2.gif";

img[9]  = new Image();
img[9].src = "images/menu-kontakt.gif";
img[10]  = new Image();
img[10].src = "images/menu-kontakt2.gif";