高手帮忙看下，这种页面怎么获取下载地址？

UXLIN

1.          <h3>下载地址</h3>
   
2.          <div class="introbox">
   
3.             <div class="content"><a href="http://click.ali213.net/download-p-6920.html"><img src="../image/down1.gif" border="0"></a>&nbsp;&nbsp;&nbsp;&nbsp;<script language="javascript">
   
4.     var thunder_url = "http://click.ali213.net/download-p-6920.html";
   
5.     var thunder_pid = "03066";
   
6.     var restitle = "";
   
7.     document.write('<a href="#" thunderHref="' + ThunderEncode(thunder_url) + '" thunderPid="' + thunder_pid + '" thunderResTitle="' + restitle + '" onClick="return OnDownloadClick_Simple(this,2,4)" oncontextmenu="ThunderNetwork_SetHref(this)"><img src="../image/down2.gif" border="0"></a>');
   
8. </script>

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paorui

从 http://click.ali213.net/download-p-6920. 这部分想办法~！