Nokia N97 mini mobile phone has a slide feature with a qwerty keyboard. It also allow users to specify whether to lock keys when closing the slide. If you want to the change this settings then you can do the following
Click on the menu button option
Navigate to Settings, followed by Phone option
Navigate to Phone Management options
Select Slide settings
Navigate to Slide and click on the lock keys slide close dropdown
The lock keys slide close provides following three option Off, On, Always ask
If you select Always ask radio option, then when the slide gets closed, you will see the following prompt action on display.