Try something like this, in its own PHP file, and include the file:
<?php
// Get the filename of the current file, minus the .php
$tmp[0] = $_SERVER['PHP_SELF'];
$tmp[1] = strrpos( $tmp[0], '?' );
if ( $tmp[1] !== FALSE )
$tmp[0] = substr( $tmp[0], 0, $tmp[1] );
$current_page = basename( $tmp[0], '.php' );
// List of pages ( 'code' => 'title' )
$pages = array(
'home' => 'home',
'gameday' => 'gameday',
'team' => 'team',
'news' => 'news',
'sponsors' => 'sponsors',
'want2play' => 'want to play',
'contact' => 'contact',
);
// Loop through the list making our links
foreach ( $pages as $code => $title )
{
if ( $code == $current_page )
$content .= "<li><span id=\"youarehere\">$title</span></li>";
else
$content .= "<li><a href=\"$code.php\">$title</a></li>";
}
// Send out the content
print <<<HTML
<div id="navcontainer">
<ul>
$content
</ul>
</div>
HTML;
?>