function right(e)
{
    if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2))
        return false;
    else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2 || event.button == 3))
    {
        alert("[ Warning !!!, you can't use right click ]");
        return false;
    }
    return true;
}

document.onmousedown = right;
document.onmouseup = right;

function checkVote()
{
    voteChoice1 = document.all.vote1.checked;
    voteChoice2 = document.all.vote2.checked;
    voteChoice3 = document.all.vote3.checked;
    voteChoice4 = document.all.vote4.checked;

    error="";

    if(voteChoice1 == false && voteChoice2 == false && voteChoice3 == false && voteChoice4 == false)
    {
        error+="\n*- ยังไม่ได้เลือกข้อ Vote";
    }
    if(error!="")
    {
        alert("ข้อมูลไม่ถูกต้อง"+error);
        return false;
    }
    location.reload(true);
    return true;
}