Closing parent n child window simeltaneously

HI,
I have a questions here.
Can I change firefox/IE’s min/max/X button lay out to lower right corner? I have a web app (let us say i have 2 pages input.php and output.php) when user enters data into input.php and click search output.php renders from server. But the user from anywhere on web should be able to close output.php by using lower right X button. (by default FF has top right X button, may top left in case of MAC), in otherwords I need to change the output.php page NOT on a user machine but on server, so that each user get same lay out when access the page. Is it possible??
pls help me…
Thanks in advance…