function get_attrib($namespaces, $attr, $element, $default = NULL)
{
$ret = $default;
if (isset($element['attribs'])) {
foreach ($namespaces as $ns) {
if (isset($element['attribs'][$ns]) and isset($element['attribs'][$ns][$attr])) {
$ret = $element['attribs'][$ns][$attr];
break;
}
}
}
return $ret;
}