diff --git a/security/MemberLoginForm.php b/security/MemberLoginForm.php
index 9f86fd207..9f6fc6e62 100644
--- a/security/MemberLoginForm.php
+++ b/security/MemberLoginForm.php
@@ -3,12 +3,12 @@
  * Log-in form for the "member" authentication method.
  *
  * Available extension points:
- * - "authenticationFailed": Called when login was not successful. 
+ * - "authenticationFailed": Called when login was not successful.
  *    Arguments: $data containing the form submission
- * - "forgotPassword": Called before forgot password logic kicks in, 
- *    allowing extensions to "veto" execution by returning FALSE. 
+ * - "forgotPassword": Called before forgot password logic kicks in,
+ *    allowing extensions to "veto" execution by returning FALSE.
  *    Arguments: $member containing the detected Member record
- * 
+ *
  * @package framework
  * @subpackage security
  */
@@ -21,16 +21,16 @@ class MemberLoginForm extends LoginForm {
 	public $loggedInAsField = 'FirstName';
 
 	protected $authenticator_class = 'MemberAuthenticator';
-	
+
 	/**
 	 * Since the logout and dologin actions may be conditionally removed, it's necessary to ensure these
 	 * remain valid actions regardless of the member login state.
 	 *
 	 * @var array
-	 * @config 
+	 * @config
 	 */
 	private static $allowed_actions = array('dologin', 'logout');
-	
+
 	/**
 	 * Constructor
 	 *
@@ -59,7 +59,7 @@ class MemberLoginForm extends LoginForm {
 		if(Director::fileExists($customCSS)) {
 			Requirements::css($customCSS);
 		}
-		
+
 		if(isset($_REQUEST['BackURL'])) {
 			$backURL = $_REQUEST['BackURL'];
 		} else {
@@ -92,7 +92,7 @@ class MemberLoginForm extends LoginForm {
 				}
 				if(Security::config()->autologin_enabled) {
 					$fields->push(new CheckboxField(
-						"Remember", 
+						"Remember",
 						_t('Member.REMEMBERME', "Remember me next time?")
 					));
 				}
@@ -124,7 +124,7 @@ class MemberLoginForm extends LoginForm {
 		$js = <<<JS
 			(function() {
 				var el = document.getElementById("MemberLoginForm_LoginForm_Email");
-				if(el && el.focus && (!jQuery || jQuery(el).is(':visible'))) el.focus();
+				if(el && el.focus && (typeof jQuery == 'undefined' || jQuery(el).is(':visible'))) el.focus();
 			})();
 JS;
 		Requirements::customScript($js, 'MemberLoginFormFieldFocus');
@@ -137,8 +137,8 @@ JS;
 		parent::getMessageFromSession();
 		if(($member = Member::currentUser()) && !Session::get('MemberLoginForm.force_message')) {
 			$this->message = _t(
-				'Member.LOGGEDINAS', 
-				"You're logged in as {name}.", 
+				'Member.LOGGEDINAS',
+				"You're logged in as {name}.",
 				array('name' => $member->{$this->loggedInAsField})
 			);
 		}
@@ -162,11 +162,11 @@ JS;
 				Session::set('SessionForms.MemberLoginForm.Remember', isset($data['Remember']));
 			}
 
-			if(isset($_REQUEST['BackURL'])) $backURL = $_REQUEST['BackURL']; 
-			else $backURL = null; 
+			if(isset($_REQUEST['BackURL'])) $backURL = $_REQUEST['BackURL'];
+			else $backURL = null;
 
 			if($backURL) Session::set('BackURL', $backURL);
-			
+
 			// Show the right tab on failed login
 			$loginLink = Director::absoluteURL($this->controller->Link('login'));
 			if($backURL) $loginLink .= '?BackURL=' . urlencode($backURL);
@@ -201,7 +201,7 @@ JS;
 			$cp->sessionMessage('Your password has expired. Please choose a new one.', 'good');
 			return $this->controller->redirect('Security/changepassword');
 		}
-		
+
 		// Absolute redirection URLs may cause spoofing
 		if(isset($_REQUEST['BackURL']) && $_REQUEST['BackURL'] && Director::is_site_url($_REQUEST['BackURL']) ) {
 			return $this->controller->redirect($_REQUEST['BackURL']);
@@ -312,7 +312,7 @@ JS;
 				_t('Member.ENTEREMAIL', 'Please enter an email address to get a password reset link.'),
 				'bad'
 			);
-			
+
 			$this->controller->redirect('Security/lostpassword');
 		}
 	}