How to repeat header information on every page

I am creating an rtf file and uploading it as a template into XML Publisher, then running it as a concurrent program.

I have a header zone which displays the logo, company address details, page number and also some form fields like customer number (there can be only one customer number for each instance of the report)

I have a details zone which displays the invoices for thre customer. The number of invoices can be high, and report may overflow into multiple pages. But I want the header information (which includes a form field like customer number) to print on the top of every page.