document.write("<link rel='stylesheet' href='images/css.css' type='text/css'><table><tr align='center'><form action='http://www.sciencetimes.com.cn/search/search.php' name='searchform' method='post' onsubmit='return(checkempty())' width='100%'><td align='center'>搜索关键词 &nbsp;<SELECT NAME='searchKey' class=9p><option value='brief' >智能</option><option value='title' >标题</option></SELECT><br><input type='text' name='keywords' size='16' value=''><input type='hidden' name='magazineid'  value=''><INPUT TYPE='hidden' name='intGotoPage' value=1><INPUT TYPE='hidden' name='totalnum' value=0><INPUT TYPE='hidden' name='totalpages' value=1><INPUT TYPE='hidden' name='sql' value=''><br>&nbsp;<input type='submit' name='cha1' value='查询' class='submit'>&nbsp;&nbsp;<input type='submit' value='高级' class='submit'></td></tr></form></table>")