F11 Key Event Fire On Onload Using Javascript

Is there any way to fire F11 key event onload and automatic exit from that after some action.?

Solution 1:

Put your following code on your load event:

if ((document.fullScreenElement && document.fullScreenElement !== null) || (!document.mozFullScreen && !document.webkitIsFullScreen)) {
           if (document.documentElement.requestFullScreen) {
                document.documentElement.requestFullScreen();
            } elseif (document.documentElement.mozRequestFullScreen) {
                document.documentElement.mozRequestFullScreen();
            } elseif (document.documentElement.webkitRequestFullScreen) {
                document.documentElement.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
            }
        } else {
            if (document.cancelFullScreen) {
                document.cancelFullScreen();
            } elseif (document.mozCancelFullScreen) {
                document.mozCancelFullScreen();
            } elseif (document.webkitCancelFullScreen) {
                document.webkitCancelFullScreen();
            }
        }

It will able to re-size of your window screen to device screen.