How to relink a user (revoke) using the javascript api.

Many thanks for your answers and your efforts to help me.

But, it is not about the Dropbox website.

I have made a Cordova app using javascript.
When the app starts first time, the user is guided to log in to a Dropbox account.
To do that, I use 

    var DROPBOX_APP_KEY = 'mydropboxappkey';
    var dbx = new Dropbox({clientId:DROPBOX_APP_KEY});
    dbx.authenticateWithCordova(
    function(accessToken)
    {

         //user is logged in
    });

The Dropbox login dialog is displayed in the app and the users can write the username and password and get access to their Dropbox .
Works fine!

My problem is that I would like to give the users opportunity to logout and login to another Dropbox account.
I can run the "dbx.revoke", and it works. The user have no longer access to the Dropbox.

Now I run the "dbx.authenticateWithCordova" again.
This time the Dropbox login dialog is not displayed.
But the user is logged automatically to the same account, and are not able to write another username and password.
The only way I can get the login dialog is to restart the app.

I hope this is clear what the problem is.