diff --git a/src/lang/en_US.lang.php b/src/lang/da_DK.lang.php
similarity index 80%
rename from src/lang/en_US.lang.php
rename to src/lang/da_DK.lang.php
index 6f6c825b..f4495f6c 100644
--- a/src/lang/en_US.lang.php
+++ b/src/lang/da_DK.lang.php
@@ -26,71 +26,70 @@
  **/
 
 $sm_lang = array(
-	'name' => 'English',
-	'locale' => array('en_US.UTF-8', 'en_US', 'american', 'english-us'),
+	'name' => 'Danish',
+	'locale' => array('da_DK.UTF-8', 'da_DK', 'danish', 'danish-dk'),
 	'system' => array(
 		'title' => 'Server Monitor',
-		'install' => 'Install',
+		'install' => 'Installere',
 		'action' => 'Action',
-		'save' => 'Save',
-		'edit' => 'Edit',
-		'delete' => 'Delete',
-		'date' => 'Date',
-		'message' => 'Message',
-		'yes' => 'Yes',
-		'no' => 'No',
-		'edit' => 'Edit',
-		'insert' => 'Insert',
-		'add_new' => 'Add new',
-		'update_available' => 'A new version ({version}) is available from <a href="http://www.phpservermonitor.org" target="_blank">http://www.phpservermonitor.org</a>.',
-		'back_to_top' => 'Back to top',
-		'go_back' => 'Go back',
+		'save' => 'Gem',
+		'edit' => 'Redigere',
+		'delete' => 'Slet',
+		'date' => 'Data',
+		'message' => 'Besked',
+		'yes' => 'Ja',
+		'no' => 'Nej',
+		'insert' => 'Indsæt',
+		'add_new' => 'Tilføj ny',
+		'update_available' => 'En ny version ({version}) er tilgængelig på <a href="http://www.phpservermonitor.org" target="_blank">http://www.phpservermonitor.org</a>.',
+		'back_to_top' => 'Tilbage til toppen',
+		'go_back' => 'Tilbage',
 		'ok' => 'OK',
-		'cancel' => 'Cancel',
+		'cancel' => 'Annullere',
 		// date/time format according the strftime php function format parameter http://php.net/manual/function.strftime.php
 		'short_day_format' => '%B %e',
 		'long_day_format' => '%B %e, %Y',
-		'yesterday_format' => 'Yesterday at %k:%M',
-		'other_day_format' => '%A at %k:%M',
-		'never' => 'Never',
-		'hours_ago' => '%d hours ago',
-		'an_hour_ago' => 'about an hour ago',
-		'minutes_ago' => '%d minutes ago',
-		'a_minute_ago' => 'about a minute ago',
-		'seconds_ago' => '%d seconds ago',
-		'a_second_ago' => 'a second ago',
+		'yesterday_format' => 'Igår %k:%M',
+		'other_day_format' => '%A %k:%M',
+		'never' => 'Aldrig',
+		'hours_ago' => '%d timer siden',
+		'an_hour_ago' => 'omkring en time siden',
+		'minutes_ago' => '%d minutter siden',
+		'a_minute_ago' => 'omkring et minut siden',
+		'seconds_ago' => '%d sekunder siden',
+		'a_second_ago' => 'et sekund siden',
 	),
 	'menu' => array(
-		'config' => 'Config',
-		'server' => 'Servers',
+		'config' => 'Indstillinger',
+		'server' => 'Servere',
 		'server_log' => 'Log',
 		'server_status' => 'Status',
-		'server_update' => 'Update',
-		'user' => 'Users',
-		'help' => 'Help',
+		'server_update' => 'Opdatere',
+		'user' => 'Brugere',
+		'help' => 'Hjælp',
 	),
 	'users' => array(
-		'user' => 'User',
-		'name' => 'Name',
-		'user_name' => 'Username',
-		'password' => 'Password',
-		'password_repeat' => 'Password repeat',
-		'password_leave_blank' => 'Leave blank to keep unchanged',
+		'user' => 'Bruger',
+		'name' => 'Navn',
+		'user_name' => 'Brugernavn',
+		'password' => 'Adgangskode',
+		'password_repeat' => 'adgangskode igen',
+		'password_leave_blank' => 'Udfuld hvis du vil skifte kode',
 		'level' => 'Level',
 		'level_10' => 'Administrator',
-		'level_20' => 'User',
-		'level_description' => '<b>Administrators</b> have full access: they can manage servers, users and edit the global configuration.<br/><b>Users</b> can only view and run the updater for the servers that have been assigned to them.',
-		'mobile' => 'Mobile',
-		'email' => 'Email',
-		'delete_title' => 'Delete User',
-		'delete_message' => 'Are you sure you want to delete user \'%1\'?',
-		'deleted' => 'User deleted.',
-		'updated' => 'User updated.',
-		'inserted' => 'User added.',
-		'profile' => 'Profile',
-		'profile_updated' => 'Your profile has been updated.',
-		'error_user_name_bad_length' => 'Usernames must be between 2 and 64 characters.',
-		'error_user_name_invalid' => 'The username may only contain alphabetic characters (a-z, A-Z), digits (0-9) and underscores (_).',
+		'level_20' => 'Bruger',
+		'level_description' => '<b>Administratore</b> har fuld adgang: De kan styre servere, brugere og indstillingere.<br/><b>Brugere</b> kan kun se og køre opdatere for servere som er tildelt til dem.',
+		'mobile' => 'Mobil',
+		'email' => 'E-mail',
+		'delete_title' => 'Slet bruger',
+		'delete_message' => 'Er du sikker på du vil slette bruger \'%1\'?',
+		'deleted' => 'Bruger slettet.',
+		'updated' => 'Bruger opdateret.',
+		'inserted' => 'Bruger tilføjet.',
+		'profile' => 'Profil',
+		'profile_updated' => 'Din profil er opdateret.',
+		'error_user_name_bad_length' => 'Brugernavn skal være mellem 2 til 64 tegn.',
+*		'error_user_name_invalid' => 'The username may only contain alphabetic characters (a-z, A-Z), digits (0-9) and underscores (_).',
 		'error_user_name_exists' => 'The given username already exists in the database.',
 		'error_user_email_bad_length' => 'Email addresses must be between 5 and 255 characters.',
 		'error_user_email_invalid' => 'The email address is invalid.',