将json发布到新窗口php

I want to post json output to a new window. How could I achieve this? Thank You!

Here is my code:

 function onSuccess(data, status)
    {
        data = $.trim(data);
        $("#notification").text(data);
    }
    $(document).ready(function() {
        $("#submit").click(function(){
            var formData = $("#callAjaxForm").serialize();
            $.ajax({
                type: "POST",
                url: "callajax.php",
                cache: false,
                data: formData,
                success: onSuccess,
                error: onError
            });

            return false;
        });
    });
</script>
        <form id="callAjaxForm">
            <div data-role="fieldcontain">
                <label for="firstName">First Name</label>
                <input type="text" name="firstName" id="firstName" value=""  />

                <label for="lastName">Last Name</label>
                <input type="text" name="lastName" id="lastName" value=""  />
                <button data-theme="b" id="submit" type="submit">Submit</button>
            </div>
        </form>

and below is callajax.php (I want to show the json information on this page)

<?php
$fName = $_POST['firstName'];
$lName = $_POST['lastName'];
echo("First Name: " . $firstName . " Last Name: " . $lastName);
?>

if you want to make a JSON representation of the data you are sending from the form use:

<?php
$fName = $_POST['firstName'];
$lName = $_POST['lastName'];
$resp = array('first_name'=>$fName,'last_name'=>$lName);
echo json_encode($resp);
?>