title: jQuery(document).width() doesn't include width outside of viewable area
body: <p><code>jQuery(document).width()</code> doesn't include the total width (viewable + outside of viewable when there's a horizontal bar). It equals <code>jQuery(window).width()</code>. I thought <code>jQuery(window).width()</code> is the viewable area width and <code>jQuery(document).width()</code> is the total width.</p>
  
  <p>How do I get the total width or how do I get the width of the area outside of the viewable area using jQuery?</p>