chelkaz

function get_values(selected) {
  var id = $(this).children(":selected").attr("id");
}

var elem = document.getElementById("myvideo");
if (elem.requestFullscreen) {
  // elem.requestFullscreen();
} else if (elem.mozRequestFullScreen) {
  // elem.mozRequestFullScreen();
} else if (elem.webkitRequestFullscreen) {
  // elem.webkitRequestFullscreen();
}

function toggleFullScreen() {
  if (!document.fullscreenElement &&    // alternative standard method
      !document.mozFullScreenElement && !document.webkitFullscreenElement) {  // current working methods
    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();
    }
  }
}

_.difference([2, 1], [2, 3]);
// => [1]