Change the value on either the radio group or the selectlist and get a dialog window with a report.
Each dialog is a report region. They have a region template of "region without title and buttons".
Each region has the item that triggers it as Page item to submit.
Each item has a dynamic action with event change. And two true actions.
Refresh that refresh the region that belongs to the item. And Execute javascript with the code "$('#STATIC_ID').dialog('open');".
The initialization of the dialogs is defined in the page setting "Javascript Run on page load".
See the help of the items for the specifics of that item and its report region.
Thread: Ajax region pull issues in firefox/IE