//257mailto_handler
// Link to add a Firefox 3 mailto: handler
$_prefs['mailto_handler'] = array(
    'type' => 'link',
    'xurl' => 'javascript:if(typeof navigator.registerProtocolHandler==\'undefined\')alert(\''
        . addslashes(_("Your browser does not support this feature."))
        . '\');else navigator.registerProtocolHandler(\'mailto\',\''  
        . Util::addParameter(Horde::applicationUrl('compose.php', true),
                             array('actionID' => 'mailto_link', 'to' => ''), false)
        . '%s\',\'' . $GLOBALS['registry']->get('name') . '\');',
    'desc' => sprintf(_("Click here to open all mailto: links in %s."), $GLOBALS['registry']->get('name')));

