if (document.images) {
  image1on = new Image();
  image1on.src = "img/sta_1.gif";

  image2on = new Image();
  image2on.src = "img/akt_1.gif";

  image3on = new Image();
  image3on.src = "img/con_1.gif";

  image4on = new Image();
  image4on.src = "img/zie_1.gif";

  image5on = new Image();
  image5on.src = "img/met_1.gif";

  image6on = new Image();
  image6on.src = "img/ref_1.gif";

  image7on = new Image();
  image7on.src = "img/vit_1.gif";

  image8on = new Image();
  image8on.src = "img/pre_1.gif";

  image9on = new Image();
  image9on.src = "img/koo_1.gif";
  
  image10on = new Image();
  image10on.src = "img/kont_1.gif";


  image1off = new Image();
  image1off.src = "img/sta_2.gif";

  image2off = new Image();
  image2off.src = "img/akt_0.gif";

  image3off = new Image();
  image3off.src = "img/con_0.gif";

  image4off = new Image();
  image4off.src = "img/zie_0.gif";

  image5off = new Image();
  image5off.src = "img/met_0.gif";

  image6off = new Image();
  image6off.src = "img/ref_0.gif";

  image7off = new Image();
  image7off.src = "img/vit_0.gif";

  image8off = new Image();
  image8off.src = "img/pre_0.gif";

  image9off = new Image();
  image9off.src = "img/koo_0.gif";

  image10off = new Image();
  image10off.src = "img/kont_0.gif";

}

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

var color = '';
var bNetsc = '';

bNetsc = (navigator.appName == 'Netscape');

function over(outer,id) {
    if (document.layers && bNetsc == false) {
        window.color = document.layers[id].bgColor;
        document.layers[id].background.src = 'img/sta_1.gif';
    }
    else if (document.all && bNetsc == false) {
        window.color = window.document.all[id].style.background;
        window.document.all[id].style.background = 'url(img/sta_1.gif)';
    }
}

function out(outer,id) {
    if (document.layers && bNetsc == false)
        document.layers[id].background.src = 'img/sta_0.gif';
    else if (document.all && bNetsc == false)
        window.document.all[id].style.background = 'url(img/sta_0.gif)';
}