//function onsubmit(event) {
//    return checkForm3();
//}
function checkForm3() {
    if (document.forms.form3.elements['email'].value.length == 0) {
        alert('Please enter a value for the "Your email address" field');
        return false;
    }
    else {
        if (document.forms.form3.elements['comments'].value.length == 0) {
            alert('Please enter a value for the "Comments" field');
            return false;
        }
    }
    return true;
}

function showText(id) {
    var panel = document.getElementById(id);
    panel.style.visibility = "visible";
    panel.style.display = "block";
}
function hideText(id) {
    var panel = document.getElementById(id);
    panel.style.visibility = "hidden";
    panel.style.display = "none";
}