function validate(form) {
    var t1 = form.Name.value;
    var t2 = form.Email.value;
    var t3 = form.Comments.value;
    if (t1 == "" || t2 == "" || t3 == "") {
        var msg  = 'You must enter the following information:          \n\n';
        var foc  = '';
        if (t1 == "") {
            msg  =  msg + '      - Name\n';
            if (foc == '') foc  =  form.Name;
        }
        if (t2 == "") {
            msg  =  msg + '      - E-Mail Address\n';
            if (foc == '') foc  =  form.Email;
        }
        if (t3 == "") {
            msg  =  msg + '      - Comments\n';
            if (foc == '') foc  =  form.Comments;
        }
        alert(msg);
        foc.focus();
        return false;
    }
    var c1 = checkmail(form.Email);
    if (c1 == "BAD") {
        alert('E-Mail address is invalid        \n\n');
        form.Email.focus();
        return false;
    }
    return true;
}

function checkmail(e) {
    var emailreturn="GOOD";
    var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
    var emailcheck =emailfilter.test(e.value)
    if (emailcheck == false) emailreturn = "BAD";
    return emailreturn;
}