Wabpart Drag N Drop with Catalog Zone in ASP 2.0

[Guest]

Hi

I want to add webpart to the webpart zone by draggin it from the catalog
zone, the way sharepoint does. Default CatalogZone doesnt support this
functionality, it displays a combobox having name of all the webpart zones
and a add button to add the webpart to the webpart zone.

How do i do this... Does any body have an idea about enabling this
functionality?

Please, this is quite urgent..

Thanx in advanced.