Keep application tidy!

[Webiter]

I have an donate application that has all its files in one Folder called donation.

The donation folder has within it the following types:

A Folder named paypal_integration_class
config.php
connect.php
donate.php
thankyou.php
styles.css

I seek to facilitate access to the application from the navigation bar which will present the application to the visitor in a pop up window.

Calling the application using the following popup fuction:

function popup() {window.open('donation/donate.php', '','scrollbars=1,statusbar=0,resizable=0,width=650,height=580,left=450,top=80');}

The donate.php file renders correctly as required, when called by the navigation.

Can the other .php, .css and File Folder that exists inside the donation Folder be written into the following popup script:-

function popup() {window.open('donation/donate.php', '','scrollbars=1,statusbar=0,resizable=0,width=650,height=580,left=450,top=80');}