Index: temp/trunk/html/admin/design/index.php
===================================================================
--- temp/trunk/html/admin/design/index.php	(revision 1356)
+++ temp/trunk/html/admin/design/index.php	(revision 1419)
@@ -123,4 +123,8 @@
 	// ¥×¥ì¥Ó¥å¡¼½èÍý
 	if ($_POST['mode'] == 'preview') {
+		
+		if ($page_id === "") {
+			header("location: ./index.php?page_id");
+		}
 		
 		lfSetPreData($arrPageData);