Code <script type="text/javascript"> var year1=window.opener.tariffform.year.value; var querytype1=window.opener.tariffform.querytype.value; var textvalue1=window.opener.tariffform.textvalue.value; var createform =function(year1,querytype1,textvalue1){ var f = document.createElement("form") f.action="http://www1.jctrans.com/tongguan/tariff/2003querytariff/seetax3.asp"; f.method="post"; f.target="show"; var i = document.createElement("input") i.type="hidden" i.value= textvalue1; i.name="textvalue" f.appendChild(i); var ii = document.createElement("input") ii.type="hidden" ii.value= querytype1; ii.name="querytype" f.appendChild(ii); document.body.appendChild(f); document.forms[0].submit(); } </script>