<? 
$reserve		= $_POST['reserve'];

$doc = new DOMDocument;
$doc->load('../db/links.xml');

$xpath = new DOMXpath($doc);

// Buffering and deleting moved element
foreach($xpath->query('label/link[title = "'.$reserve.'"]') as $node) {
	$buffer = $node;
	$node->parentNode->removeChild($node);
}

$searchLabel = $xpath->query('reserve');

$searchLabel->item(0)->appendChild($buffer);
$doc->save('../db/links.xml');