Forum hook: global_start setting footer template variable
 

I have this piece of code. The header works ok, the footer does not.

For some reason the $RightWidth variable does not seem to get set in the footer template.
Code:
if (stristr($_SERVER['REQUEST_URI'], 'calendar') === FALSE) {
$MainWidth = '73%';
$XWidth = '23%';

} else {
$MainWidth = '100%';
$XWidth = '0%';

}

vB_Template::preRegister( 'header', array('MainWidth' => $MainWidth ));
vB_Template::preRegister( 'footer', array('RightWidth' => $XWidth ));
Any ideas?