window.open POST数据
function openNewSpecifiedWindow( windowName )
{
window.open('about:blank',windowName,'width=700,height=400,menubar=no,scrollbars=no');
}
</script>
<FORM name="tariffform" action="http://www1.jctrans.com/tongguan/tariff/2003querytariff/seetax3.asp" method="post" target="newWindow" onsubmit="openNewSpecifiedWindow('newWindow')">