How to use request param attribute in Rules in Webshphere Portal 6.0

[pulijala hari]

Hi,

I have a requirement where i need to hide a portlet based on a Hidden variable(Request parameter) in Websphere Portal V 6.0. Is there anyway in the Rules in WS Portal 6.0.

Or specifically.., is there a way to hide a portlet based on Request/Session attribute using rules in websphere portal 6.0 .., any thoughts on this will be highly appreciated....