ดูโค้ด POPUP ให้หน่อยเถอะครับ ถ้าแก้ส่วนนี้ได้ งานฉลุยแล้วออกมาสวยเลยหละครับ ติดตัวนี้เอง

<a href="javascript:NewWindow('http://www.twebmaster.com','acepopup','640','480','custom','front');">LinkText</a>

<a href="javascript:NewWindow('print_prd_mont.php?ym_date=<? echo $ym_date; ?>','acepopup','640','480','custom','front');">  Link Popup  </a>

<SCRIPT LANGUAGE='JAVASCRIPT' TYPE='TEXT/JAVASCRIPT'>
 <!--
var win=null;
function NewWindow(mypage,myname,w,h,pos,infocus){
if(pos=="random"){myleft=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;mytop=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
if(pos=="center"){myleft=(screen.width)?(screen.width-w)/2:100;mytop=(screen.height)?(screen.height-h)/2:100;}
else if((pos!='center' && pos!="random") || pos==null){myleft=0;mytop=20}
settings="width=" + w + ",height=" + h + ",top=" + mytop + ",left=" + myleft + ",scrollbars=no,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no";win=window.open(mypage,myname,settings);
win.focus();}
// -->
</script>