jquery如何实现浏览器全屏？？

全屏

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 (elem.msRequestFullscreen) {
elem.msRequestFullscreen();
}
退出全屏

if (document.exitFullscreen) {
document.exitFullscreen();
}
else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
}
else if (document.webkitCancelFullScreen) {
document.webkitCancelFullScreen();
}
else if (document.msExitFullscreen) {
document.msExitFullscreen();
}
事件监听

document.addEventListener("fullscreenchange", function () {
fullscreenState.innerHTML = (document.fullscreen)? "" : "not ";}, false);

document.addEventListener("mozfullscreenchange", function () {
fullscreenState.innerHTML = (document.mozFullScreen)? "" : "not ";}, false);

document.addEventListener("webkitfullscreenchange", function () {
fullscreenState.innerHTML = (document.webkitIsFullScreen)? "" : "not ";}, false);
document.addEventListener("msfullscreenchange", function () {
fullscreenState.innerHTML = (document.msFullscreenElement)? "" : "not ";}, false);
全屏样式设置
在浏览器全屏的使用我们还可以进行样式设置

html:-moz-full-screen {
background: red;
}

html:-webkit-full-screen {
background: red;
}

html:fullscreen {
background: red;
}

把状态栏，地址栏，工具栏全取消了？