DAP has a Login/Logout Widget that you can use in any widget-ready theme.
Log in as WP admin, and look under “Appearance > Widgets”.
You’ll see the widget. Drag this widget on to any customizable part of your theme.
The widget puts the DAP login form right on your sidebar.
When a user is not logged in, they will see the login form.
When they are logged in, they just see a “Logout” button.