Tab click event to RadPageView (ContentUrl)

[Dwight]

I'm using a RadTabStrip with RadPageView that brings up pages via the ContentUrl.  I have a javascript function on the pages which does a resize of the page.  I use the window events of load and onload within those pages to trigger my resize javascript function.  It works the first time each time tab is clicked, but not when you go back and click a tab that was already clicked once.  I was able to get it to work by using AutoPostBack=True in the RadTabStrip, but I do a lookup to a database for each page so I don't want to keep doing the same lookups over and over.  Any suggestions?  I realize using the ContentUrl it creates an iFrame, so it gets a tad interesting.