全屏f11 效果

document.getElementById("fullvoide").onclick=function(){
     var el = document.documentElement;
     var rfs = el.requestFullScreen || el.webkitRequestFullScreen || el.mozRequestFullScreen || el.msRequestFullScreen;
     if (typeof rfs != "undefined" && rfs) {
              rfs.call(el);
         } else if(typeof window.ActiveXObject != "undefined"){
              var wscript = new ActiveXObject("WScript.Shell");
              if (wscript!=null) {
                wscript.SendKeys("{F11}");
         }
     }
  }