I am writing a validation function for a html code that was given to me for my class, but am not allowed to change the html code besides adding a head and script. I am at such an early stage that I don't know how to use jQuery yet and would like help with validation for the multiple radio buttons.

I have tried looking for the answer on this and many other sites and just can't seem to find it. I have tried multiple codes, but I suspect that all of them were made with jQuery.

The input for the html

```
<input type = "radio" name = "radNewsletter" value = "" />Health and Wellness<br />
<input type = "radio" name = "radNewsletter" value = "" />Creative Writing<br />
<input type = "radio" name = "radNewsletter" value = ""/>Gardening

```

The existing validation

```
    function validateForm() {
        var x = document.forms["frmNews"]["txtName"].value;
        if (x == "") {
            alert ("Name must be filled out.");
            return false;
            }
        var y = document.forms["frmNews"]["txtEmail"].value;
        if (y == "") {
            alert ("Email must be filled out.");
            return false;
            }

```

I was unable to get any other output than the form validating when I pressed the submit button, even when the existing validation should have stopped it.