/**
* Function: findNode
*
* Returns the first node where attr equals value.
* This implementation does not use XPath.
*/
static function findNode($node, $attr, $value)
{
$tmp = $node->getAttribute($attr);
if (isset($tmp) && $tmp == $value) {
return $node;
}
$node = $node->firstChild;
while (isset($node)) {
$result = mxUtils::findNode($node, $attr, $value);
if (isset($result)) {
return $result;
}
$node = $node->nextSibling;
}
return null;
}