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}");
}
}
}