/* function ukazimg(pid,zdroj) {document.getElementById('pid').src = 'zdroj'};
function preload() {
   button_01= new Image(80,70); 
  button_01.src="../img/layout/button_01_on.jpg"; 
   button_02= new Image(80,70); 
  button_02.src="../img/layout/button_02_on.jpg";
   button_03= new Image(80,70); 
  button_03.src="../img/layout/button_03_on.jpg";
   button_04= new Image(80,70); 
  button_04.src="../img/layout/button_04_on.jpg";
   button_05= new Image(80,70); 
  button_05.src="../img/layout/button_05_on.jpg";
   spacer= new Image(1,1); 
  spacer.src="../img/layout/spacer.gif";
}
ukazimg('nahled';'img/kontakt/tn_mapa.gif') */

function vymentext(divid, retez) {document.getElementById(divid).innerHTML = retez;}

function vymenimg(divid, zdroj) {document.getElementById(divid).src = zdroj;}



function newImage(arg) {
  if (document.images) {
     rslt = new Image();
     rslt.src = arg;
     return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
     for (var i=0; i<changeImages.arguments.length; i+=2) {
        document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
     }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
     sp3_05_over = newImage("../img/layout/button_01_on.jpg");
     sp3_06_over = newImage("../img/layout/button_02_on.jpg");
     sp3_08_over = newImage("../img/layout/button_03_on.jpg");
     sp3_09_over = newImage("../img/layout/button_04_on.jpg");
     sp3_10_over = newImage("../img/layout/button_05_on.jpg");
     sp3_11_over = newImage("../img/layout/spacer.gif");
     sp3_12_over = newImage("../img/layout/button_06_on.jpg");
     preloadFlag = true;
  }
}