Index: /temp/trunk/html/admin/products/product.php
===================================================================
--- /temp/trunk/html/admin/products/product.php	(revision 9405)
+++ /temp/trunk/html/admin/products/product.php	(revision 9406)
@@ -75,5 +75,8 @@
 		// DB¤«¤é¾¦ÉʾðÊó¤ÎÆɹþ
 		$arrForm = lfGetProduct($_POST['product_id']);
-		if($_POST['mode'] == "copy") $arrForm["product_id"] = "";
+		if($_POST['mode'] == "copy"){
+			$arrForm["copy_product_id"] = $arrForm["product_id"];
+			$arrForm["product_id"] = "";
+		}
 		$objPage->arrForm = $arrForm;