Print SSRS Report multiple times dynamically

Hi,

This may be a very simple quesiton !

I am using SSRS 2008 and VS 2010. I am looking into printing a same report multiple times dynamically

For instance I want a LetterHead to be printed as many times as the user enters the value for number of Pages TextBox 

I am getting the LetterHead to be printed from database through stored procedure

This can be done , of course when we get the print dialog , but what I have is before we see a report (by clicking say a print button) the user enters the value in number of Pages TextBox, in the WebPage and then click the print button next to it --Like this :

 This print button will show the Report, then simply clicking print button in the ReportViewer Control should print as many LetterHeads for him as he entered the value.

Any ideas would be greatly appreciated 

Thanks

Ciphers