/html/includes/joomla.phpの変更

function setPageTitle( $title=null ) {
if (@$GLOBALS['mosConfig_pagetitles']) {
$title = trim( htmlspecialchars( $title ) );
$title = stripslashes($title);
//$this->_head['title'] = $title ? $GLOBALS['mosConfig_sitename'] . ' - '. $title : $GLOBALS['mosConfig_sitename'];

//タイトルのスイッチ
switch($_SERVER['REQUEST_URI']){
case '/index.php?option=com_contact&task=view&contact_id=2&Itemid=124': $title = 'ご意見箱'; break;
case '/index.php?option=com_contact&task=view&contact_id=1&Itemid=125': $title = '技術的なお問い合せ'; break;
}

$this->_head['title'] = $title ? $GLOBALS['mosConfig_sitename'] . ' - '. $title : $GLOBALS['mosConfig_sitename'];

}
}