Windows Authentication

 
         I need to apply Windows Authentication for my website. But We dont want the user to be enter the User Name and Password in the Popup coming default.
 
         We need to provide the user with the input controls in the aspx page , then using the credentials will need to implement the Windows Authentication.  
 
        Is it Possible to pass the windows authentication username and password from the aspx page , to enable the Windows Authentication
 
Plz help me out.
 
Thanks in Advance....
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