I have a html form with <input type='radio'>

<form action="results.php" method="post" enctype="multipart/form-data" onsubmit='return false'><br>
            <p>Have you ever turned a client down?</p>
            <div id="q_1">
                <input type="radio" name="q1" id="q_1_yes" value="yes">
                <label for="q_1_yes">Yes</label>
                <input type="radio" name="q1" id="q_1_no" value="no">
                <label for="q_1_no">No</label>
            </div><br>
            <p>Are you comfortable with failure?</p>
            <div id="q_1">
                <input type="radio" name="q2" id="q_2_yes" value="yes">
                <label for="q_2_yes">Yes</label>
                <input type="radio" name="q2" id="q_2_no" value="no">
                <label for="q_2_no">No</label>
            </div><br>
            <input type="submit" onclick='return handleClick();' name="sub_eit" id="sub_eit" value="Submit">
</form>

I have a javascript function to check if the amount of radio buttons with value "yes" is greater than the amount with value "no" as below

function handleClick()
{
var amountYes = 0;
for(var i = 1; i <= 4; i++) {
    var radios = document.getElementsByName('q'+i);
    for(var j = 0; j < radios.length; j++) {
        var radio = radios[j];
        if(radio.value == "yes" && radio.checked) {
            amountYes++;
        }
    }
}
//code to perform php insert function if yes is less than or equal to 2 
if (amountYes <= 2) {
   $.ajax({
       type: "POST",
       url: "results.php",
       dataType: "json",
       success: function (response) {
       }
   });
} else {
    alert("Correct Responses: " + amountYes);
}
}

results.php

if (isset($_POST['q_1']) && isset($_POST['q_2']))
{
$q_1 = $_POST['q_1'];
$q_2 = $_POST['q_2'];

$yes = "yes";
$no = "no";

$id = $_SESSION['id'];
$u_name = $_SESSION['uname'];

    $recommend = "Executive";

    $osql =<<< EOF
INSERT INTO results (id, recomend, u_name, status) VALUES ('$id', '$recommend', '$u_name', '1');
EOF;
    $ret = $db->exec($osql);
}

But the ajax code doesn't seem to work. Please what is the issue. Thanks in advance for your help. Highly appreciate