title: showing camera roll and gallery images in WP7
body: <p>I m developing an application in WP7,C#. When I launch the photochooser task from my application it shows me all the images from cameraroll, sample pictures and media library. Actually I would like to show every part seperately. For example when I click a button it should show me only images stored in camera roll. When I click another button it should show images only from media library. So please let me know if there is any way to do it.</p>