Is there a way in Javascript to determine if no elements are in focus? -

i'm building hotkeys page of html:

   $(document).bind('keypress', function (e) {         var event = (e.keycode ? e.keycode : e.which);          if (event == letter_p) {             // go page         }     } 

but problem if entering text on page (in textbox element, etc) , hit letter 'p', off page. want redirection happen if not in elements.

document.activeelement supported major browsers these days. if no element in focus activeelement return document body, so:

if (document.activeelement === document.body) {     // nothing in focus }