Create Admin User Pragmatically in Magento

$user = Mage::getModel('admin/user')
		->setData(array(
			'username'  =>'username',
			'firstname' => 'firstname',
			'lastname'  => 'lastname',
			'email'     => 'useremail@domain.com',
			'password'  => 'loginpwd',
			'is_active' => 1
		))->save();
$user->setRoleIds(array(3))   //here 3 is Role Id that assign to this user
	->setRoleUserId($user->getUserId())
	->saveRelations();