■スクリプト
<HTML>
<HEAD>
<TITLE>Sample</TITLE>
<SCRIPT>
subWin = window.open("Dummy.htm","blank","width=320,height=240");
</SCRIPT>
</HEAD>
<BODY bgColor="white">
<CENTER>
<H1>ロケーションを置き換えます</H1>
</CENTER>
<FORM>
<INPUT TYPE="button" VALUE="URL変更" onClick='subWin.location.replace("../")'>
</FORM>
<P>
<HR>
<P>
</BODY></HTML>