你的pageName有没有定义？
<body><script language="JavaScript">
<!--
pageName = 0;
document.write("<xmlfile id='xmlfile' src='fileSrc/"+pageName+"/"+pageName+".xml'></xmlfile>");//-->
</script>
<body><script language="JavaScript">
<!--
pageName = 0;
document.write("<xmlfile id='xmlfile' src='fileSrc/"+pageName+"/"+pageName+".xml'></xmlfile>");//-->
</script>
<script language="javaScript">
dw = new Function("x", "document.write(x)");
cssName = "";
sStr = location.search;
para = sStr.split("&");
pageName = para[0].split("=")[1];
cssName = para[1].split("=")[1];
</script>
是取出URL中的参数。
应该是：your.html?pageName=xx&cssName=yy的形式