<!--
function checkRequiredFields(input)
{
    var fieldCheck   = true;
    var fieldsNeeded = "Please supply the following information to submit the form:\n\n";

    if (document.enquiry.yourname.value == "") {
        fieldsNeeded += "- Your Name\n";
        fieldCheck = false;
    }

    if (document.enquiry.age.value == "") {
        fieldsNeeded += "- Your Age\n";
        fieldCheck = false;
    }

    if (document.enquiry.youremail.value == "") {
        fieldsNeeded += "- Your Email Address\n";
        fieldCheck = false;
    } else {
        var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
        if (!filter.test(document.enquiry.youremail.value)) {
            fieldsNeeded += "- Correctly formatted Email Address\n";
            fieldCheck = false;
        }
    }

    if (!document.enquiry.terms.checked) {
        fieldsNeeded += "- Agree to the Terms and Conditions\n";
        fieldCheck = false;
    }

    if (fieldCheck) {
        return true;
    } else {
        alert(fieldsNeeded);
        return false;
    }
}

function toAlpha(checkString)
{
    newString = "";
    count = 0;
    for (i = 0; i < checkString.length; i++) {
        ch = checkString.substring(i, i+1);
        if ((ch >= "a" && ch <= "z") || (ch >= "A" && ch <= "Z" )) {
            newString += ch;
        }
    }
    return newString;
}
//-->