function clearcontrols() {
    document.getElementById('ctl00_ContentPlaceHolder1_txtName').value = "";
    document.getElementById('ctl00_ContentPlaceHolder1_txtPostalAddress').value = "";
    document.getElementById('ctl00_ContentPlaceHolder1_txtPhone').value = "";
    document.getElementById('ctl00_ContentPlaceHolder1_txtEmail').value = "";
    document.getElementById('ctl00_ContentPlaceHolder1_txtAreaMessage').value = "";
    document.getElementById('ctl00_ContentPlaceHolder1_txtContactTime').value = "";
    document.getElementById('ctl00_ContentPlaceHolder1_chkBox').Checked = false;
    return false;
}