clicking print button in report only 1 page getting printed!

on clicking print button in report only 1 page getting printed!,but i want to print all pages

i tried in javascript,but only one page is getting printed i want all pages to be printed..how
 to code ?

 below is my javascript code:

style="Z-INDEX: 111; LEFT: 737px; WIDTH: 53px; POSITION: absolute; TOP: 18px; HEIGHT: 19px; "

onclick="javascript:window.print();" type="button" value="Print" id="Button9"/>