Fixed some PHP warnings

diff --git a/admin/admin.php b/admin/admin.php
index 59e5403abdd207b7b9266e489cf1e72ad6729b44..79f98b742b5145827b9ca25ee5aee6941e25c73c 100644 (file)
--- a/admin/admin.php
+++ b/admin/admin.php
@@ -4,9 +4,8 @@
 
        require_once("../config.php");
 
-    # sanity checks
-    assert("!ereg('[^0-9]', \$_REQUEST['add'])");
-    assert("!ereg('[^0-9]', \$_REQUEST['remove'])");
+    optional_variable($add, "");
+    optional_variable($remove, "");
 
     if (! $site = get_site()) {
         redirect("$CFG->wwwroot/admin/");