Title tag and site description in SimpleMarket

Hi,

Sorry, this is probably a basic coding question but I can't figure out how to substitute the site description in the title tag with another term such as my domain name. Here's the relevant code. I'm trying to change the title tag for posts and pages.

<title>
<?php global $page, $paged;
wp_title( '|', true, 'right' );
bloginfo( 'name' );
$site_description = get_bloginfo( 'description', 'display' );
if ( $site_description && ( is_home() || is_front_page() ) )
echo " | $site_description";
if ( $paged >= 2 || $page >= 2 )
echo ' | ' . sprintf( __( 'Page %s', TEMPLATE_DOMAIN), max( $paged, $page ) );