I work in vídeo player, and fullscreen system is the problem, how make this toggle ?

Current script:

1.     <script>
       $("#nome").click( function() {
       var element = document.getElementById("nome");      
       if (element.mozRequestFullScreen) {
       element.mozRequestFullScreen();
       } else if (element.webkitRequestFullScreen) {
       element.webkitRequestFullScreen();
       } 
       });
       </script>
   
   
   
   
   
   
   
   
   

and the progress bar, anyone has more examples...