function openWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}

function changeImage(witchone,newimage) {
  document[witchone].src=newimage;
}

function preloadImages(pathAndBegenning,preloadedImages,endding) {
  var preloaded_Images=preloadedImages.split(' ');
  var images=new Array();
  for (var i=0; i<preloaded_Images.length; i++){
    images[i]=new Image();
    images[i].src=pathAndBegenning+preloaded_Images[i]+endding;
  }
}

Rot13 = {
    map: null,

    convert: function(a) {
        Rot13.init();

        var s = "";
        for (i=0; i < a.length; i++) {
            var b = a.charAt(i);
            s += ((b>='A' && b<='Z') || (b>='a' && b<='z') ? Rot13.map[b] : b);
        }
        return s;
    },

    init: function() {
        if (Rot13.map != null)
            return;
              
        var map = new Array();
        var s   = "abcdefghijklmnopqrstuvwxyz";

        for (i=0; i<s.length; i++)
            map[s.charAt(i)] = s.charAt((i+13)%26);
        for (i=0; i<s.length; i++)
            map[s.charAt(i).toUpperCase()] = s.charAt((i+13)%26).toUpperCase();

        Rot13.map = map;
    },

    write: function(a) {
        document.write(Rot13.convert(a));
    }
}