Problem with Validations and Logout

Sir! I have stuckked in my final Project website. i Have many webpages in a master page in asp.net using vb.net. there are textboxes and other controls on different forms and they are validated through VS Validators... the Logout button is on Master Page,  the problem is that when i click on Logout button to Logout from the site, if the textboxes are empty it does not log out and ask for Requirefields,,even there is no submit code on Logout button... is there any solution for this problem.....

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