[OpenLayers-Users] Trap double click event for WMS layer

[Subha Ramakrishnan]

Hi,

I am using openlayers with google physical as the base map.
And i overlay a WMS polygon layer on top of it using mapserver. And on 
single click of the polygon, i highlight the polygon and display the 
pop-up.
This happens when i double click on the polygon also.I don't want the 
polygon to be selected on double click and i want it to only zoom in.

How do i do this??

Expecting reply from someone.

Regards,
Subha