<script language="javascript">
var url = "htm/js.php?url="+escape(document.referrer)+"&num=50&snum=0&enum=0&pnum=0";
document.write('<scr'+'ipt language="javascript" src="'+url+'" ></scr'+'ipt>');
</script>
var url = "htm/js.php?url="+escape(document.referrer)+"&num=50&snum=0&enum=0&pnum=0";
document.write('<scr'+'ipt language="javascript" src="'+url+'" ></scr'+'ipt>');
</script>
js.php根据传入的参数加载一个js代码或文件。
这一点在 jscript用户手册 中就有明确的说明无论如何,手册还是要看的