How to get document height and width without using jquery

Question

How to get document height and width in pure javascript i.e without using jquery.
I know about $(document).height() and $(document).width(), bu

Answer 1

Even the last example given on http://www.howtocreate.co.uk/tutorials/javascript/browserwindow is not working on Quirks mode. Easier to find than I thought, this seems to be the solution(extracted from latest jquery code):

Math.max(
    document.documentElement["clientWidth"],
    document.body["scrollWidth"],
    document.documentElement["scrollWidth"],
    document.body["offsetWidth"],
    document.documentElement["offsetWidth"]
);

just replace Width for "Height" to get Height.