小窓を表示し、親窓から小窓を印刷する

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<script type="text/javascript">
var childWin;
function oChild(){
	childWin = window.open("dummy.html","","width=200,height=200");
}
function pChild(){
	if(childWin){window.childWin.print();}
}
//-->
</script>
</head>
<body>
<form>
<input type="button" name="btnOpen" value="小窓を開く" onClick="oChild()">
<input type="button" name="btnClose" value="小窓を印刷する" onClick="pChild()">
</form>
</body>
</html>