Slow Javascript in IE

Problem:

The menu on this website:  http://www.sohtanaka.com/web-design/side-navigation-tooltip-popup-bubble/ ran fine in IE.  It was quick and worked fine.  On my website however, it ran slooow.

Solution:

Look for large images that may be loaded.  IE doesn’t seem to handle them very well.  The background image for my project was 1196×1150.  Pretty large…  Gotta adjust for the weakest browsers.