RadScheduler inside javascript tab not displaying on page load

[Nicole]

I have two tabs on a page; the tabs are being created with JavaScript.  The first tab displays a repeater of events, the second tab is suppose to show the month view with the events using the RadScheduler.  When you first go to the page the first tab loads fine then you click on the tab to show the RadScheduler and nothing appears - if you refresh the browser the RadScheduler appears.  Is there some kind of page load event I should add or should I preload something?  This appears to be happening in these browsers IE, Firefox and Chrome (the only ones I tested with).

Any help or advice is greatly appreciated.

Thanks!
Nicole