<script type="text/javascript">
  function goFullscreen(id) {
    // Get the element that we want to take into fullscreen mode
    var element = document.getElementById(id);
    
    // These function will not exist in the browsers that don't support fullscreen mode yet, 
    // so we'll have to check to see if they're available before calling them.
    
    if (element.mozRequestFullScreen) {
      // This is how to go into fullscren mode in Firefox
      // Note the "moz" prefix, which is short for Mozilla.
      element.mozRequestFullScreen();
    } else if (element.webkitRequestFullScreen) {
      // This is how to go into fullscreen mode in Chrome and Safari
      // Both of those browsers are based on the Webkit project, hence the same prefix.
      element.webkitRequestFullScreen();
   }
   // Hooray, now we're in fullscreen mode!
  }
</script>

    <input type="button" onClick="goFullscreen('body');" value="FullScreen">

if use full screen mode with js for 3 second cursor restored to default ! <pre><nowiki><script type="text/javascript"> function goFullscreen(id) { // Get the element that we want to take into fullscreen mode var element = document.getElementById(id); // These function will not exist in the browsers that don't support fullscreen mode yet, // so we'll have to check to see if they're available before calling them. if (element.mozRequestFullScreen) { // This is how to go into fullscren mode in Firefox // Note the "moz" prefix, which is short for Mozilla. element.mozRequestFullScreen(); } else if (element.webkitRequestFullScreen) { // This is how to go into fullscreen mode in Chrome and Safari // Both of those browsers are based on the Webkit project, hence the same prefix. element.webkitRequestFullScreen(); } // Hooray, now we're in fullscreen mode! } </script> <input type="button" onClick="goFullscreen('body');" value="FullScreen"></nowiki></pre>