public static function updateCrumb($label, $crumb = array('status' => 'current'), $newLabel = '')
{
if (array_key_exists($label, self::$_crumbs)) {
if ($newLabel == '') {
self::$_crumbs[$label] = $crumb;
} else {
$newCrumbs = array();
foreach (self::$_crumbs as $oldLabel => $oldCrumb) {
if ($oldLabel == $label) {
$newCrumbs[$newLabel] = $crumb;
} else {
$newCrumbs[$oldLabel] = $oldCrumb;
}
}
self::$_crumbs = $newCrumbs;
}
} else {
self::pushCrumb($newLabel !== '' ? $newLabel : $label, $crumb);
}
}