HTML_Quickform_controller not getting $_GET variables?

[Beek]

Hi. This is my first post on the forum, so please bear with me

I'm trying to build some complex forms with php, more precise with the
HTML_Quickform_controller package available from the PEAR network.

What I try to do is the following: when I click on a certain link, a new page
(a form) gets opened in a new window, and I pass some variables
together with the URL of the form. An example would be:

window.open("removeMe.php?var1=1&var2=2") 

Now, in the file removeMe.php, I subclass HTML_QuickForm_Page to
create my form. (code below) However, the 'hidden' elements do not
work. They set the correct value the first time I call the page, but
every next call (with different parameters) leaves these hidden fields
on the same values as the first time. (Note that the $var1 variable
DOES change, strangely enough!)

This is the relevant code:

class Remove extends HTML_QuickForm_Page { 
  function buildForm() { 
    $this->formBuilt = true; 
    $var1 = isset($_GET['var1']) ? $_GET['var1'] : "neverused"; 
    $var2 = isset($_GET['var2']) ? $_GET['var2'] : "neverused"; 

$this->addElement('header', null, 'Variable is ' . $var1) //This works each time!! 

//$this->addElement( .... add some elements ....); 

$this->addElement('hidden', 'var1', $var1); //This only works the first time and then remains unchanged forever??? 
$this->addElement('hidden', 'var2', $var2); 

$this->addElement('submit', $this->getButtonName('submit'), 'Remove'); 
$this->setDefaultAction('submit'); 
  } 
}

I've checked the documentation and the source, but couldn't find out why
this is happening. Any help would be appreciated.

Thanks in advance,

Beek