<div class="tab"> <div id="tabsK"> <ul id="menu4"> <li onclick="settab(4,0)" class="hover"><a title="最新更新"><span>最新更新</span></a></li> <li onclick="settab(4,1)"><a title="企业新闻"><span>企业新闻</span></a></li> <li onclick="settab(4,2)"><a title="行业新闻"><span>行业新闻</span></a></li> <li onclick="settab(4,3)"><a title="专栏文章"><span>专栏文章</span></a></li> <li onclick="settab(4,4)"><a title="科技新闻"><span>科技新闻</span></a></li> </ul> </div> <div class="tab2" id="main4"> <ul class="block"></ul> <ul ></ul> <ul ></ul> <ul ></ul> <ul ></ul> </div> </div>

#tabsK { float:left; width:100%; line-height:normal; border-bottom:1px solid #54545C; } #tabsK ul { margin:0; padding:10px 10px 0 10px; list-style:none; } #tabsK li { display:inline; margin:0; padding:0; cursor:pointer; } #tabsK a { float:left; background:url("image/tableftK.gif") no-repeat left top; margin:0; padding:0 0 0 4px; text-decoration:none; } #tabsK a span { float:left; display:block; background:url("image/tabrightK.gif") no-repeat right top; padding:8px 16px 4px 6px; color:#FFF; } #tabsK a span {float:none;} /* End IE5-Mac hack */ #tabsK a:hover span { cursor:pointer; color:#FFF; background-position:100% -42px; } #tabsK a:hover { background-position:0% -42px; cursor:pointer; } #tabsK .hover a { background-position:0% -42px; } #tabsK .hover span { background-position:100% -42px; } .tab2 ul { display:none; list-style-type:none; height:560px; } .tab2 ul li { text-align:left; line-height:20px; text-indent:1em; } .tab2 .block { display:block; }

<script language="javascript"><!-- function settab(m,n){ var tli=document.getElementById("menu"+m).getElementsByTagName("li"); var mli=document.getElementById("main"+m).getElementsByTagName("ul"); for(i=0;i<tli.length;i++){ tli[i].className=i==n?"hover":""; mli[i].style.display=i==n?"block":"none"; } } // --></script>