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 verifyMarket()
{
    $merchandiseTopic = document.all.$merchandiseTopic.value;
    merchandiseAuthor = document.all.merchandiseAuthor.value;
    merchandiseEmail = document.all.merchandiseEmail.value;
    merchandiseTel = document.all.merchandiseTel.value;
    error="";

    if($merchandiseTopic == "")
    {
        error+="\n*- หัวข้อ";
    }
    if(merchandiseAuthor == "")
    {
        error+="\n*- ผู้ส่ง";
    }
    if(merchandiseEmail == "")
    {
        error+="\n*- อีเมล";
    }
    if(merchandiseTel == "")
    {
        error+="\n*- เบอร์โทร";
    }
    if(error!="")
    {
        alert("ข้อมูลไม่ถูกต้อง"+error);
        return false;
    }
    return true;
}

function openNewWindow(url)
{
        window.open(url,"newwindow");
}