if(document.getElementById('relative'))document.getElementById('relative').innerHTML='<div>前一篇：<a href=\"/other/chem_knowledge/show.asp?id=193995\" target=\"_self\">出口报价和成本核算</a></div>\n<div>后一篇：<a href=\"/other/chem_knowledge/show.asp?id=193999\" target=\"_self\">混合二甲苯简介</a></div>\n';