function validateForm()
{
    formObj = document.enquiryform;
    if (formObj.name.value == "")
    {
        alert("You have not filled in the name field.");
        formObj.name.focus();
        return false;
    }
    else if (formObj.address.value == "")
    {
        alert("You have not filled in the address field.");
        formObj.address.focus();
        return false;
    }
    else if (formObj.phone.value == "")
    {
        alert("You have not filled in your phone number.");
        formObj.phone.focus();
        return false;
    }
    else if (formObj.email.value == "")
    {
        alert("You have not filled in your E-Mail address.");
        formObj.email.focus();
        return false;
    }
}