fullscreen.js

(function() {
  var viewFullScreen = document.getElementById("view-fullscreen");
  viewFullScreen.addEventListener("click", function() {
    var docElm = document.documentElement;
    if (docElm.mozRequestFullScreen) {
      docElm.mozRequestFullScreen();
    } else if (docElm.webkitRequestFullScreen) {
      docElm.webkitRequestFullScreen();
    }
  }, false);
})();