Extra Condition for Header

[Lawbird123]

Im trying to add an additional condition to some javascript in my header. Here's a link to the site: http://stillpicturesinmotion.com/archangel/?cat=1

I'm using 2 flash headers (still working on the navigational hover). One is for the "blog" portion of the site and the other is for the products portion (found here: http://stillpicturesinmotion.com/arc...&products_id=1 )

In order to accomplish this I used the following js code along with the Nice 'n EZ flash module. Here is the js:

<?php
   
 if(isset($_GET['cat'])) {
    switch((int)$_GET['cat']) {
case 1: //change out WP header
echo get_flashed('header','900','328'); 
break;
default: //default
echo get_flashed('header','900','328');
break;
  }
 }
 else echo get_flashed('header_2','900','146');
?>

It works fine, except for when I click on the "blog" portion header links. These display the product header. I was wondering if anyone knew how to add another condition to the previous code.
Example:

<?php
   
 if(isset($_GET['cat','p'])) {
    switch((int)$_GET['cat','p']) {
case 1: //change out WP header
echo get_flashed('header','900','328'); 
break;
default: //default
echo get_flashed('header','900','328');
break;
  }
 }
 else echo get_flashed('header_2','900','146');
?>

Cheers!