title: Problems with offset in overflow Div
body: <p>I'm having problems with JQuery Offset when used inside of a div that has a fixed height and overflow.</p>
  
  <p>Inside this div I have two columns, a main and a sidebar.  I want one of the divs in the side bar to scroll within the div until it reaches the top, but then I want it to stay there.</p>
  
  <p>I have a demo set up here : <a href="http://jsfiddle.net/zsJAr/53/" rel="nofollow">http://jsfiddle.net/zsJAr/53/</a></p>
  
  <p>The div does scroll up but it doesn't start to stay at the top until it's scrolled past the top of the div, effectively cutting off the top part of the div.</p>
  
  <p>Any help would be greatly appreciated.</p>