[jQuery] Need help converting conventional code to jquery

[Ibatex]

Hi all, I'm new here and new to jquery in general.

Question is how can I do the following in jquery, I'd like to have
access to jqueries effects and animations.

function togglePassFail(radioName) {
        var buttonGrp = document.getElementsByName(radioName);
        var radioValue;

        // text input for related details are in a div thats the next sibling
of the parent div of the radio buttons
        var detailDiv = buttonGrp[0].parentNode.nextSibling;

        // get value of selected radio button
        for (var i=0; i<buttonGrp.length; i++) {
                if (buttonGrp[i].checked == true) {
                        radioValue = buttonGrp[i].value;
                }
        }

        // hide if pass is selected, show otherwise
        detailDiv.style.display = (radioValue == 'p') ? 'none' : 'block';
}

Thanks ahead of time for any help.