Javascript Fullscreen

How to toggle fullscreen?

function toggleFullScreen() {
    if (document.documentElement) {
        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"){
            // for Internet Explorer
            var wscript = new ActiveXObject("WScript.Shell");
            if (wscript!=null) {
                wscript.SendKeys("{F11}");
            }
        }
    }
}

How to detect full screen mode?

• http://stackoverflow.com/questions/16755129/detect-fullscreen-mode
• http://stackoverflow.com/questions/5617963/how-to-detect-if-user-has-enabled-full-screen-in-browser
• http://stackoverflow.com/questions/1047319/detecting-if-a-browser-is-in-full-screen-mode
• http://stackoverflow.com/questions/19000168/fullscreen-api-how-to-detect-going-into-fullscreen-mode
• http://davidwalsh.name/fullscreen
• http://www.paulund.co.uk/javascript-full-screen-api
• http://johndyer.name/native-fullscreen-javascript-api-plus-jquery-plugin/
• https://hacks.mozilla.org/2012/01/using-the-fullscreen-api-in-web-browsers/