How to stop AjaxToolkit AsyncFileUpload tabbing order from stopping on filepath text box.

Question

I have an ASPX page with an AsyncFileUpload control from the AJAX Control Toolkit, but when I try to tab through the tab order, the tab will not allow a tab past the filepath textbox (part of the AsyncFileUpload control). This control is contained within an update panel (if that matters in this implementation).

How can I continue on in the tab order?

Thank you,

Scott Blue