Customized Timestamp Navigator

Sep 2, 2008 at 4:25 PM

I want to create a customized timestamp navigator in ESP-FAST. My requirement is like this...
Time Period
    Last 90 days (54)
    Last 6 months (123)
    Last year (2,023)
    ALL (2,246)

By default Fast is using equal frequency algorithm. I am trying to use manual algorithm for this. In the field reference I am using docdatetime var of type date, which is the publish date of the document. Can you plz help me ????