function Validate() {
    if (document.getElementById('txtName').value == "") {
        alert('Please enter your name');
        document.getElementById('txtName').focus();
        document.getElementById('txtName').style.border = "1px solid red";
        return false;
    }
    if (document.getElementById('txtEmail').value == "") {
        alert('Please enter your email address');
        document.getElementById('txtEmail').focus();
        document.getElementById('txtEmail').style.border = "1px solid red";
        return false;
    }
    if (document.getElementById('txtCompany').value == "") {
        alert('Please enter your company name');
        document.getElementById('txtCompany').focus();
        document.getElementById('txtCompany').style.border = "1px solid red";
        return false;
    }
    if (document.getElementById('txtTelephone').value == "") {
        alert('Please enter your telephone number');
        document.getElementById('txtTelephone').focus();
        document.getElementById('txtTelephone').style.border = "1px solid red";
        return false;
    }
    if (document.getElementById('txtEnquiry').value == "") {
        alert('Please enter your enquiry');
        document.getElementById('txtEnquiry').focus();
        document.getElementById('txtEnquiry').style.border = "1px solid red";
        return false;
    }
    if(document.getElementById('txtData').checked == false) {
        if(!confirm("You have selected that Memento cannot contact you using the details you have supplied, do you still want to continue?")) return false;
    }
    return true;
}