User:Schäuble/monobook.js

/**********************************
 * Watching Script v1.1           *
 *  by KnoedelDealer   2007/05/01 *
 *                                *
 *  no copyright, free usage      *
 **********************************/


var h = -150;
var h2 = 1;
var l = 100;
var ie = (navigator.appName.indexOf('Internet Explorer') > -1) ? true : false;

function watching() {
   var body = document.getElementsByTagName('body')[0];
   l = (body.offsetWidth - 140) * Math.random();
   var img = document.createElement('img');
   img.id = 'imgWatching';
   img.src = 'http://s23.org/w/images/1/1a/Schaueble-head.gif';
   img.title = 'i\'m watching you!';
   img.style.display = 'none';
   body.appendChild(img);
   if (ie) {
      img.style.position = 'absolute';
   } else {
      img.style.position = 'fixed';
   }
   img.style.bottom = h + 'px';
   img.style.left = l + 'px';
   h2 = Math.random() / 3;
   window.setTimeout('moveUp();', 1000);
}

function moveUp() {
   if (document.getElementById('imgWatching')) {
      var img = document.getElementById('imgWatching');
      if (img.style.display == 'none') {
         img.style.display = 'inline';
      }
      if (h < (0 - img.height * h2)) {
         h = h + 10;
         img.style.bottom = h + 'px';
         window.setTimeout('moveUp();', 50);
      } else {
         window.setTimeout('moveDown();', 1000);
      }
   }
}

function moveDown() {
   if (document.getElementById('imgWatching') && (document.getElementsByTagName('body').length > 0)) {
      var body = document.getElementsByTagName('body')[0];
      var img = document.getElementById('imgWatching');
      if (h > (0 - img.height)) {
         h = h - 10;
         img.style.bottom = h + 'px';
         window.setTimeout('moveDown();', 50);
      } else {
         img.style.display = 'none';
         l = (body.offsetWidth - 140) * Math.random();
         img.style.left = l + 'px';
         h2 = Math.random() / 3;
         window.setTimeout('moveUp();', 5000 * Math.random());
      }
   }
}

window.onload = watching;