Default value for Value Prompt

[deepak2k2]

Hi,

I've created a crosstab report with month prompt as the selection.  Now I need to give a defualt value for the prompt based on some condition. 
Ex:  From Dec 1 to Dec 5 = Default value is Oct 10; After Dec 5 = Default value is Nov 10.

Its a cube & I'm trying with Prompt Macro #prompt('p','mun',''). 

Pls give some sugesstions.

[deepak2k2]

Any suggestion pls.