title: How much more scroll do I have in html?
body: <p>Let's say the scroll bar is at a certain place, is there a way for me to know, in pixels how much more scroll I have?</p>
  
  <p>I'm using jQuery scrollLeft: <a href="http://api.jquery.com/scrollLeft/" rel="nofollow">http://api.jquery.com/scrollLeft/</a>
  but I don't want to overrun the value...</p>