var c = 1;

/* Preloading images */
var image1 = new Image();
image1.src = "obrazky/tr/tr1.jpg";
var image2 = new Image();
image2.src = "obrazky/tr/tr2.jpg";
var image3 = new Image();
image3.src = "obrazky/tr/tr3.jpg";
var image4 = new Image();
image4.src = "obrazky/tr/tr4.jpg";
var image5 = new Image();
image5.src = "obrazky/tr/tr5.jpg";
var image6 = new Image();
image6.src = "obrazky/tr/tr6.jpg";
var image7 = new Image();
image7.src = "obrazky/tr/tr7.jpg";
var image8 = new Image();
image8.src = "obrazky/tr/tr8.jpg";
var image9 = new Image();
image9.src = "obrazky/tr/tr9.jpg";
var image10 = new Image();
image10.src = "obrazky/tr/tr10.jpg";
var image11 = new Image();
image11.src = "obrazky/tr/tr11.jpg";
var image12 = new Image();
image12.src = "obrazky/tr/tr12.jpg";
var image13 = new Image();
image13.src = "obrazky/tr/tr13.jpg";
var image14 = new Image();
image14.src = "obrazky/tr/tr14.jpg";
var image15 = new Image();
image15.src = "obrazky/tr/tr15.jpg";
var image16 = new Image();
image16.src = "obrazky/tr/tr16.jpg";
var image17 = new Image();
image17.src = "obrazky/tr/tr17.jpg";
var image18 = new Image();
image18.src = "obrazky/tr/tr18.jpg";
var image19 = new Image();
image19.src = "obrazky/tr/tr19.jpg";
var image20 = new Image();
image20.src = "obrazky/tr/tr20.jpg";
var image21 = new Image();
image21.src = "obrazky/tr/tr21.jpg";
var image22 = new Image();
image22.src = "obrazky/tr/tr22.jpg";
var image23 = new Image();
image23.src = "obrazky/tr/tr23.jpg";
var image24 = new Image();
image24.src = "obrazky/tr/tr24.jpg";
var image25 = new Image();
image25.src = "obrazky/tr/tr25.jpg";
var image26 = new Image();
image26.src = "obrazky/tr/tr26.jpg";
var image27 = new Image();
image27.src = "obrazky/tr/tr27.jpg";
var image28 = new Image();
image28.src = "obrazky/tr/tr28.jpg";
var image29 = new Image();
image29.src = "obrazky/tr/tr29.jpg";
var image30 = new Image();
image30.src = "obrazky/tr/tr30.jpg";
var image31 = new Image();
image31.src = "obrazky/tr/tr31.jpg";
var image32 = new Image();
image32.src = "obrazky/tr/tr32.jpg";
var image33 = new Image();
image33.src = "obrazky/tr/tr33.jpg";
var image34 = new Image();
image34.src = "obrazky/tr/tr34.jpg";
var image35 = new Image();
image35.src = "obrazky/tr/tr35.jpg";
var image36 = new Image();
image36.src = "obrazky/tr/tr36.jpg";
var image37 = new Image();
image37.src = "obrazky/tr/tr37.jpg";
var image38 = new Image();
image38.src = "obrazky/tr/tr38.jpg";
var image39 = new Image();
image39.src = "obrazky/tr/tr39.jpg";
var image40 = new Image();
image40.src = "obrazky/tr/tr40.jpg";
var image41 = new Image();
image41.src = "obrazky/tr/tr41.jpg";
var image42 = new Image();
image42.src = "obrazky/tr/tr42.jpg";
var image43 = new Image();
image43.src = "obrazky/tr/tr43.jpg";
var image44 = new Image();
image44.src = "obrazky/tr/tr44.jpg";
var image45 = new Image();
image45.src = "obrazky/tr/tr45.jpg";
var image46 = new Image();
image46.src = "obrazky/tr/tr46.jpg";
var image47 = new Image();
image47.src = "obrazky/tr/tr47.jpg";
var image48 = new Image();
image48.src = "obrazky/tr/tr48.jpg";
var image49 = new Image();
image49.src = "obrazky/tr/tr49.jpg";
var image50 = new Image();
image50.src = "obrazky/tr/tr50.jpg";
var image51 = new Image();
image51.src = "obrazky/tr/tr51.jpg";
var image52 = new Image();
image52.src = "obrazky/tr/tr52.jpg";
var image53 = new Image();
image53.src = "obrazky/tr/tr53.jpg";
var image54 = new Image();
image54.src = "obrazky/tr/tr54.jpg";
var image55 = new Image();
image55.src = "obrazky/tr/tr55.jpg";
function disp_img(w)
   {
   if (c == 55)
      {
      c = 1;
      }
   var img_src = "obrazky/tr/tr" + c + ".jpg";
   document.degacik.src = img_src;
   c++;
   }
t = setInterval("disp_img(c)", 200);