Change order of Javascript content loading on my Web page

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
See my Wordpress blog at The left column contains only widget-driven ads from my adserver. I would like the information in that column to be loaded only after the main content in the middle column has loaded. My page loads slowly and I would like readers to be able to read the content as soon as possible after hitting the page, with the ads loading afterward.

I've heard of a "defer" option in Javascript that may accomplish this and I'm sure there are other ways as well. I need the solution to work in IE, Firefox, and Chrome.

I'm interested in any other easy speed-up options you can suggest. I've tried Wordpress caching plug-ins an would prefer to not use those again. I'm also not interested in making major design changes or revising how the ads work.

Skills required:
Javascript, Wordpress
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