<!--
//check to make sure form has been completed
function submitForm()
{
    //user must answer this many questions
    var num_req = 30;
    var total_questions = 30;    
    var num_answered = 0;
    for (var i = 0; i < total_questions*2; i += 2)
    {
        if (document.forms[0].elements[i].checked ||
        document.forms[0].elements[i + 1].checked)
        num_answered ++;
    }

    if (num_answered < num_req)
    {
        var msg = "Please answer ";
    if (num_req == total_questions)
        msg += "all of the";
    else
        msg += "at least " + num_req;
    msg += " questions so that we can accurately score this test.";
        window.alert(msg);
    }
    else
        document.forms[0].submit();
}
// -->