浏览器模拟F11

var fullindex=1;
function fullscreen(){
if ($.browser.msie && $.browser.version.indexOf("8") == 0) {
if(typeof window.ActiveXObject != "undefined") {
//for IE8，这里和fullScreen相同，模拟按下F11键退出全屏
var wscript = new ActiveXObject("WScript.Shell");
if(wscript != null) {
wscript.SendKeys("{F11}");
} 
}
}else if(parseInt(fullindex)==1){
var docElm = document.documentElement; 
//W3C  
if (docElm.requestFullscreen) { 
docElm.requestFullscreen(); 
} 
//FireFox  
else if (docElm.mozRequestFullScreen) { 
docElm.mozRequestFullScreen(); 
} 
//Chrome等  
else if (docElm.webkitRequestFullScreen) { 
docElm.webkitRequestFullScreen(); 
} 
//IE11  
else if (docElm.msRequestFullscreen) { 
docElm.msRequestFullscreen(); 
}
fullindex=0;
}else if(parseInt(fullindex)==0){
if (document.exitFullscreen) { 
document.exitFullscreen(); 
} 
else if (document.mozCancelFullScreen) { 
document.mozCancelFullScreen();