아래와 같이 폼이 닫히기 전에 다시 폼을 써서 데이터를 자식창으로 보내야 될 경우 어떻게 처리해야 될까요?

 

<script type="text/javascript">
function PopView() {
    var f = document.app;
    f.action = "test2.php";
    window.open('','pop_view','width=960,height=540,scrollbars=1');
    f.target = "pop_view";
    f.submit();
}
</script>
<form action="test3.php"
method="post" id="fregisterform" name=fregisterform onsubmit="return fregisterform_submit(this);" enctype="multipart/form-data" autocomplete="off">

<form name="app" method="post">
<select id="car" name="car">
<option value="">차량을 선택해 주세요</option>
<?php for ($i=0; $i<count($d); $i++) { ?>
<option value="<?=$d[$i];?>"><?=$d[$i]; ?></option>
 <?}?>
</select>
<input type="button" value="전송" onclick="PopView()" />
</form>

<input type="image" src="/images/tablename_99.jpg" width="117" height="30" alt="">
</form>