javascript判断及设置浏览器全屏模式

//设置浏览器全屏
function f_SetFullScreen() {
//如果浏览器不是全屏则将其设置为全屏模式
if (!f_IsFullScreen()) {
var wsShell = new ActiveXObject('WScript.Shell');
wsShell.SendKeys('{F11}');
return false;
}
}

//判断浏览器是否全屏
function f_IsFullScreen() {
return (document.body.scrollHeight == window.screen.height && document.body.scrollWidth == window.screen.width);
}