Cleaned warnings in errorlog.

diff --git a/sales/includes/sales_db.inc b/sales/includes/sales_db.inc
index 22c354170da06a57efd1ee4e9f059af3a38cfc3c..7a7d1e32d33739a45d7371b1805c8a7703ff3dff 100644 (file)
--- a/sales/includes/sales_db.inc
+++ b/sales/includes/sales_db.inc
@@ -185,7 +185,8 @@ function set_document_parent($cart)
        if (count($cart->src_docs) == 1) {
 
                // if this child document has only one parent - update child link
-               $del_no = reset(array_keys($cart->src_docs));
+               $src = array_keys($cart->src_docs);
+               $del_no = reset($src);
 
                $sql = 'UPDATE '.TB_PREF.'debtor_trans SET trans_link = ' . $del_no .
                        ' WHERE type='.db_escape($cart->trans_type).' AND trans_no='. $inv_no ;