求助，关于frame的问题

Index.html
=======================
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<frameset cols="20%,*">
  <frame name="frmLeft" src="Frame01.html">
  <frame name="frmRight" src="http://www.csdn.net">
</frameset>
</HTML>
Frame01.html
====================
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD><BODY>
<INPUT TYPE="Button" onclick="Test()">
</BODY>
</HTML>
<script language='javascript'>
function Test() {
  window.top.frmRight.location.href = "http://www.sina.com.cn";
}
</script>