Initial page should be blank when executing a Dashboard

Hi,

I am creating a dashboard with 3 tables and 3 charts. A set of table & Chart gets data from one Dataprovider, similarly 2 more sets of Table & Charts from other Dataproviders. I have added a dropdown web item with this 3 Dataproviders in it, wherein when i select a Dataprovder the chart & table for that dataprovider alone is displayed, other 2 sets are hidden.

When i execute this template, in the first screen, i am getting a dropdown at the top with all the 3 tables & 3 charts displaying below. But I want the initial screen to be blank with only Dropdown box at the top. Only when i select a query from the dropdown, the table & Chart should be displayed. I am sure that this is possible in WAD but not sure on how to do it.

Any help is highly appreciated.

Regards,

Murali