BI Publisher, Bursting Template Conditions

Summary

Only show second page of template if condition is met

Content

Hello

I am bursting a letter to colleagues telling them the outcome of a pay review.  The template has two pages.  Page one is the letter, page two is a breakdown of their new pay.

However, I only want the second page to show if there has been a change in pay (i.e. if pay stays the same they just get the letter, as the breakdown is relevant).

Can anyone tell me if I can put such a condition in the template?  I'd rather not have to have two bursting models.