Local tasks rendering based on the profile's userid

Hello all,

I‘m trying to render different tabs on the user profile page based on the id of profile's owner, that's the code I put into the template.php file, where a3_atlantis is the theme name. If I log myself in as an authenticated user, the tabs are still there. The tab I wanna disable is generated by the Views module. Any hints?

/**
* Generate the HTML output for a single local task link.
*
* @ingroup themeable
*/
function a3_atlantis_menu_local_task($link, $active = FALSE) {
// only disable the tab linked to "veranstaltungen"
if (preg_match("/veranstaltungen/", $link) && arg(0)=="user") {
//load the user based on the id obtained through the path to the profile
$user = user_load(arg(1));
// and if the user is assigned to the editor role return the tab, else omit the tab
if (in_array('editor', $user->roles)) {
return '<li '. ($active ? 'class="active" ' : '') .'>'. $link ."</li>\n";
} else {
return ' ';
}
}
return '<li '. ($active ? 'class="active" ' : '') .'>'. $link ."</li>\n";
}