jquery: scroll to an element within an overflowed div
<p>i have 20 list items inside of a div that can only show 5 at a time. what is a good way to scroll to item #10, and then item #20.</p>

<p>i know the height of all the items.</p>

<p>the scrollTo plugin does this, but its source is not super easy to understand without really getting into it. <strong>important -</strong> i dont want to use this plugin</p>

<p>lets say i have a function that takes 2 elements
<strong>$parentDiv, $innerListItem</strong></p>

<p>neither $innerListItem.offset().top nor $innerListItem.positon().top gives me the correct scrollTop for $parentDiv</p>
