function validateForm()
{
    var name = document.getElementsByName("Name")[0];
    var email = document.getElementsByName("Email")[0];
    var phoneAreaCode = document.getElementsByName("PhoneAreaCode")[0];
    var phonePrefix = document.getElementsByName("PhonePrefix")[0];
    var phoneSuffix = document.getElementsByName("PhoneSuffix")[0];

    if (name.value.length <= 0) {
        alert("Name is required.");
        name.focus();
        return false;
    }

    if (email.value.length <= 0) {
        alert("Email is required.");
        email.focus();
        return false;
    }

    if (phoneAreaCode.value.length != 3 || !IsNumeric(phoneAreaCode.value)) {
        alert("Phone number is invalid.");
        phoneAreaCode.value = "";
        phonePrefix.value = "";
        phoneSuffix.value = "";
        phoneAreaCode.focus();
        return false;
    }

    if (phonePrefix.value.length != 3 || !IsNumeric(phonePrefix.value)) {
        alert("Phone number is invalid.");
        phoneAreaCode.value = "";
        phonePrefix.value = "";
        phoneSuffix.value = "";
        phoneAreaCode.focus();
        return false;
    }

    if (phoneSuffix.value.length != 4 || !IsNumeric(phoneSuffix.value)) {
        alert("Phone number is invalid.");
        phoneAreaCode.value = "";
        phonePrefix.value = "";
        phoneSuffix.value = "";
        phoneAreaCode.focus();
        return false;
    }
    
    return true;
}

function IsNumeric(sText) {
    var ValidChars = "0123456789.";
    var IsNumber = true;
    var Char;


    for (i = 0; i < sText.length && IsNumber == true; i++) {
        Char = sText.charAt(i);
        if (ValidChars.indexOf(Char) == -1) {
            IsNumber = false;
        }
    }
    return IsNumber;
}

function initRollovers() {
    if (!document.getElementById || !window.XMLHttpRequest) return
    var aPreLoad = new Array();
    var sTempSrc;
    var aImages = document.getElementsByTagName('img');

    for (var i = 0; i < aImages.length; i++) {
        if (aImages[i].className == 'NavButton') {
            var src = aImages[i].getAttribute('src');
            var ftype = src.substring(src.lastIndexOf('.'), src.length);
            var hsrc = src.replace(ftype, 'Roll' + ftype);

            aImages[i].setAttribute('hsrc', hsrc);

            aPreLoad[i] = new Image();
            aPreLoad[i].src = hsrc;

            aImages[i].onmouseover = function() {
                sTempSrc = this.getAttribute('src');
                this.setAttribute('src', this.getAttribute('hsrc'));
            }

            aImages[i].onmouseout = function() {
                if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('Roll' + ftype, ftype);
                this.setAttribute('src', sTempSrc);
            }

            aImages[i].onload = "";
        }
    }
}