Create javascript popup window with choosable item listing

We have an almost finished website which is jquery ajax enabled. On one page we need to create a javascript popup window (which has to be styled similarly to the main window in terms of color, etc) on which a list of items (image + description) is displayed. When the user chooses an item by clicking on it, the popup window has to be closed and a javascript event has to be executed. Should be quite simple for someone familiar with Ajax/jQuery.