Javascript Post Data

<script language="javascript">
    function CekLogin(){
        $(document).ready(function(){
        $("#login").submit( function (){
        $.ajax({
               type: "POST",
               url : 'http://www.berthojoris.com/dev/jqm/login_cek.php',
               data: {
                  username:$('#username').val(),
                  password:$('#password').val(),
               },
               dataType: "json",
               success: function (data) {
                    if (data.response=='SuksesLogin') {
                        jAlert('Login Successfully', 'Success');
                    } else {
                        jAlert('Login Failed', 'Failed');
                    }
                }
      });
    });
});
}
</script>