diff --git a/lam/templates/account/edit.php b/lam/templates/account/edit.php
index 4a2f0abc..4316b486 100644
--- a/lam/templates/account/edit.php
+++ b/lam/templates/account/edit.php
@@ -55,7 +55,7 @@ if (!isset($_SESSION['loggedIn'])) {
 setlanguage();
 
 //load account
-if ($_GET['DN']) {
+if (isset($_GET['DN'])) {
 	$DN = str_replace("\'", '', $_GET['DN']);
 	$type = str_replace("\'", '', $_GET['type']);
 	if ($_GET['type'] == $type) $type = str_replace("'", '',$_GET['type']);
diff --git a/lam/templates/login.php b/lam/templates/login.php
index 499b98fb..c5dc9a9b 100644
--- a/lam/templates/login.php
+++ b/lam/templates/login.php
@@ -286,7 +286,7 @@ function display_LoginPage($config_object) {
 							<td style="border-style:none" height="30"><b>
 								<?php
 								echo _("Configuration profile") . ": ";
-								if(!$_POST['profileChange']) {
+								if(empty($_POST['profileChange'])) {
 									$_POST['profile'] = $_SESSION['config']->file;
 								}
 								?></b>
@@ -330,7 +330,7 @@ function display_LoginPage($config_object) {
 }
 
 // checking if the submitted username/password is correct.
-if($_POST['checklogin'])
+if(!empty($_POST['checklogin']))
 {
 	$_SESSION['lampath'] = realpath('../') . "/";  // Save full path to lam in session
 
@@ -389,7 +389,7 @@ if($_POST['checklogin'])
 	}
 }
 // Reload loginpage after a profile change
-elseif($_POST['profileChange']) {
+elseif(!empty($_POST['profileChange'])) {
 	$_SESSION['config'] = new Config($_POST['profile']); // Recreate the config object with the submited
 	display_LoginPage($_SESSION['config']); // Load login page
 }