If you can change your header php code, find it and hack it like:
<!-- For seo startnewweb.com -->
<?php
$app = JFactory::getApplication();
$menu = $app->getMenu();
if ($menu->getActive() == $menu->getDefault()) {
?> <h1 style="display:none;"><?php echo $seo ?></h1> <?php
} else {
?>
<h2 style="display:none;"><?php echo $seo ?></h2>
<?php } ?>
<!-- End seo h1 startnewweb.com -->
