function disablenonpostal(chkId,txtId1,txtId2,txtId3,drpId,rfv1,rfv2,rfv3) {
    var chkbox = document.getElementById(chkId);
    var txt1 = document.getElementById(txtId1);
    var txt2 = document.getElementById(txtId2);
    var txt3 = document.getElementById(txtId3);
    var drp = document.getElementById(drpId); 
    if (chkbox.checked) {
        txt1.disabled = true;
        txt2.disabled = true;
        txt3.disabled = true;
        drp.disabled = true;
        //Disable required field validators
        ValidatorEnable(document.getElementById(rfv1),false);
        ValidatorEnable(document.getElementById(rfv2),false);
        ValidatorEnable(document.getElementById(rfv3),false);
    } else {
        txt1.disabled = false;
        txt2.disabled = false;
        txt3.disabled = false;
        drp.disabled = false;
        //Enabled requiredfieldvalidators
        ValidatorEnable(document.getElementById(rfv1),true);
        ValidatorEnable(document.getElementById(rfv2),true);
        ValidatorEnable(document.getElementById(rfv3),true);
    }
}
function hide(id) {
    document.getElementById(id).style.visibility = "hidden";
    document.getElementById(id).style.display = "none";
}
function display(id) {
    document.getElementById(id).style.visibility = "visible";
    document.getElementById(id).style.display = "block";
}
function removecheck(idchk) {
    var chk = document.getElementById(idchk);
    chk.checked = false;
}