How to implement Logout in asp .net while using frameset

Question

Hi,

 

I am getting one problem while implementing logout functionality in .net .I am using frameset here instead of master page. While I click on Logout button tree_framset is disappearing after delay of some seconds but it should not delay for a moment also as Contentf_ramest is logging out before of tree_frameset . But my requirement is while I click on logout button both frameset should disappear at a same time and redirect to login.aspx.

 

Note : I am using <a href="login.aspx......../a>