// for onpage results
            $(function(){
                $('input[type=submit]').click(function(){
                    if($("#myform").valid()){

                $.ajax({
                    type: "POST",
                    url: "send.php",
                    data: $("#myform").serialize(),
                    cache: false,
                    beforeSend: function(){
                        $('#stepsuccess').html('Loading...');
                    },
                    success: function(data){
                        $('#stepsuccess').html(data);

                    }
                });
                }
            });
        });

// prevent sending empty and stuff
$('.form-horizontal').keypress(function (event) {
    if (event.which === 13) {
        event.preventDefault();
        $(".next").trigger('click');
    }
});

// jQuery.validate script, does client-side validation
$(document).ready(function(){
    $(".next").click(function(){
        var form = $("#myform");
        form.validate({
            errorElement: 'div',
            errorClass: 'formerror',
            highlight: function(element, errorClass, validClass) {
                $(element).closest('.form-group').addClass("has-error");
            },
            unhighlight: function(element, errorClass, validClass) {
                $(element).closest('.form-group').removeClass("has-error");
            },
            rules: {
                username: {
                    required: true,
                    minlength: 1,
                    remote: "check-username.php"
                },
                email: {
                    required: true,
                    minlength: 3,
                },

            },
            messages: {
                username: {
                    required: "Username required",
                    remote: "taken",
                },
                email: {
                    required: "Email required",
                },
            }
        });
        if (form.valid() === true){
            if ($('#stepusername').is(":visible")){
                current_fs = $('#stepusername');
                next_fs = $('#stepemail');
            }else if($('#stepemail').is(":visible")){
                current_fs = $('#stepemail');
                next_fs = $('#stepsuccess');
            }

            next_fs.show();
            current_fs.hide();
        }
    });

});

$request = $_REQUEST['username'];

$query = mysql_query("SELECT * FROM members WHERE username ='$request'");
$result = mysql_num_rows($query);
if ($result == 0){
$valid = 'true';}
else{
$valid = 'false';
}
echo $valid;