iframe地址栏的参数赋值给iframe

<iframe id="fileList" name="fileList"  frameborder="0" scrolling="no" src="#" width="955px" height="400px"></iframe>
  <script type="text/javascript" language="javascript">
   function GetPara()
   {
   var para=location.search.toString();
   if((para!=null)&para.length>13)
   {
   var paravalue=para.substring(13,para.length);
   document.getElementsByName("fileList")[0].src="/entity/first/firstInfoNews_toCourse.action?type=list&searchTitle="+paravalue;
   }
   }
   window.onload=GetPara();
   </script>