if(document.getElementById('relative'))document.getElementById('relative').innerHTML='<div>前一篇：<a href=\"/other/chem_knowledge/show.asp?id=594501\" target=\"_self\">原油泄漏所产生的危害</a></div>\n<div>后一篇：<a href=\"/other/chem_knowledge/show.asp?id=594930\" target=\"_self\">能源知识：世界石油资源如何分布？</a></div>\n';