// check for native support
 if (typeof document.cancelFullScreen != \'undefined\') {
  fullScreenApi.supportsFullScreen = true;
 } else {
  // check for fullscreen support by vendor prefix
  for (var i = 0, il = browserPrefixes.length; i < il; i++) {
   fullScreenApi.prefix = browserPrefixes[i];

   if (typeof document[fullScreenApi.prefix + \'CancelFullScreen\'] != \'undefined\') {
    fullScreenApi.supportsFullScreen = true;

    break;
   }
  }
 }

 // update methods to do something useful
 if (fullScreenApi.supportsFullScreen) {
  fullScreenApi.fullScreenEventName = fullScreenApi.prefix + \'fullscreenchange\';

  fullScreenApi.isFullScreen = function () {
   switch (this.prefix) {
   case \'\':
    return document.fullScreen;
   case \'webkit\':
    return document.webkitIsFullScreen;
   default:
    return document[this.prefix + \'FullScreen\'];
   }
  }
  fullScreenApi.requestFullScreen = function (el) {
   return (this.prefix === \'\') ? el.requestFullScreen() : el[this.prefix + \'RequestFullScreen\']();
  }
  fullScreenApi.cancelFullScreen = function (el) {
   return (this.prefix === \'\') ? document.cancelFullScreen() : document[this.prefix + \'CancelFullScreen\']();
  }
 }

 // jQuery plugin
 if (typeof jQuery != \'undefined\') {
  jQuery.fn.requestFullScreen = function () {

   return this.each(function () {
    if (fullScreenApi.supportsFullScreen) {
     fullScreenApi.requestFullScreen(this);
    }
   });
  };
 }

 // export api
 window.fullScreenApi = fullScreenApi;
})();

$(function(){
 $(\"#fullScreenBtn\").click(function(){
  $(\"#fullScreen\").requestFullScreen();
 });

 if(window.top != self){
  $(\"#tip\").text(\"iframe里面不能演示该功能！请点击右下角的全屏查看！\").show();
 }
});

if (!fullScreenApi.supportsFullScreen) {
 alert(\"您的破浏览器不支持全屏API哦，请换高版本的chrome或者firebox！\");
}