JS FullScreen

toggleFullScreen.js

// http://stackoverflow.com/a/10627148  
function toggleFullScreen() {
   if ((document.fullScreenElement && document.fullScreenElement !== null) ||    
   (!document.mozFullScreen && !document.webkitIsFullScreen)) {
     if (document.documentElement.requestFullScreen) {  
       document.documentElement.requestFullScreen();  
     } else if (document.documentElement.mozRequestFullScreen) {  
       document.documentElement.mozRequestFullScreen();  
     } else if (document.documentElement.webkitRequestFullScreen) {  
       document.documentElement.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);  
     }  
   } else {  
     if (document.cancelFullScreen) {  
       document.cancelFullScreen();  
     } else if (document.mozCancelFullScreen) {  
       document.mozCancelFullScreen();  
     } else if (document.webkitCancelFullScreen) {  
       document.webkitCancelFullScreen();  
     }  
   }  
 }