setInterval(function(){jQuery.post('/2017/admin/inc/OnLineUpdate.asp?UserUrl=\%2F2017\%2Findex.html');},20000);
/**
<script language=javascript>setInterval(function(){jQuery.ajax({type:'post',url:'admin/inc/OnLineUpdate.asp?UserUrl=%2F2017%2Findex%2Ehtml',async:true});},20000);</script>
**/