<? 
$label		= $_POST['label'];
$order		= $_POST['order'];
$itemMoved	= $_POST['itemMoved'];

$orderArray = explode(',', $order); 
$itemIndex = 0;

foreach($orderArray as $index=>$value){
	if($value == $itemMoved)
		$itemIndex = (int)$index;
}

$itemAfter = '';
if(isset($orderArray[$itemIndex+1]))
	$itemAfter = $orderArray[$itemIndex+1];

$doc = new DOMDocument;
$doc->load('../db/links.xml');

$xpath = new DOMXpath($doc);

// Buffering and deleting moved element
foreach($xpath->query('label/link[title = "'.$itemMoved.'"]') as $node) {
	$buffer = $node;
	$node->parentNode->removeChild($node);
}

if($itemAfter != ''){
	$searchLabel = $xpath->query('label[@id="'.$label.'"]/link[title = "'.$itemAfter.'"]')->item(0);
	$searchLabel->parentNode->insertBefore($buffer, $searchLabel);
}else{
	$searchLabel = $xpath->query('label[@id="'.$label.'"]');
	$searchLabel->item(0)->appendChild($buffer);
}
$doc->save('../db/links.xml');