diff -r b60b88b1ae08 -r 6baa2f78d3fe add_user.php
--- a/add_user.php	Fri Jul 11 08:02:01 2008 +0000
+++ b/add_user.php	Fri Jul 11 08:59:07 2008 +0000
@@ -25,7 +25,7 @@
 if (!verify_permission('user_add_new')) {
 	error(ERR_PERM_ADD_USER);
 } else {
-	if($_POST["commit"]) {
+	if(isset($_POST["commit"])) {
 		add_new_user($_POST);
 		success(SUC_USER_ADD);
 	}