To find when axapta knows a new page is required in report

Hi guys,

Sorry for the messy subject(I dont know how to define my prob as short as subject)

I hav a job to create a report for cheque.

Requirement is like that, the format of the report is not fixed(may be changed, It is checked from parameters field).

First page is always with the cheque format.Next page may be with format or not, depends on user.

When the printer prints the first page, it should stops for user interaction, and asks for whether user want to print on formatted paper or blank paper for second page.

I want to know where I can put my code, when axapta calls itself newPage().

Any idea will be helpful…