New URL and hidden input generating stuff.

tbl_alter.php3

@@ -18,12 +18,7 @@ if (!isset($submit_mult)) {
 /**
  * Defines the url to return to in case of error in a sql statement
  */
-$err_url = 'tbl_properties_structure.php3'
-         . '?lang=' . $lang
-         . '&convcharset=' . $convcharset
-         . '&server=' . $server
-         . '&db=' . urlencode($db)
-         . '&table=' . urlencode($table);
+$err_url = 'tbl_properties_structure.php3?' . PMA_generate_common_url($db, $table);
 
 
 /**