How to reference aspx on subsite?

[africa-boy]

I have a sub asp.net site. By sub, I mean it is a web app in IIS that is under the main web app.When the user logs out of the main site, session variables remain valid on the sub site.I'd like to null out session variables in the sub site. I can create subendsession.aspx on the sub site specifically for this. The main site calls endsession.aspx when the user logs out. How do I call subendsession.aspx without redirecting the user there?Is there a better technique for this scenario?