js tab效果的实现代码

预实现效果:(点击不同的tab显示不同面板内容)

 一:用到的js函数:

<script language="javascript" type="text/javascript" > 
//变换tab函数 
//原则,外层div里含有内层多个div 
function tabPanelEx(trThis,urlImgNormal,urlImgPoint,tabs,tabid){ 
var tds=trThis.parentNode.children; 
for(var i=0;i<tds.length;i++) 
{ 
if(tds[i].attributes["ex"]) 
{ 
tds[i].style.backgroundImage="url("+urlImgNormal+")"; 
} 
} 
trThis.style.backgroundImage="url("+urlImgPoint+")"; 
//div control 
var vtabs=document.getElementById(tabs).children; 
for(var j=0;j<vtabs.length;j++) 
{ 
vtabs[j].style.display="none"; 
} 
document.getElementById(tabid).style.display="block"; 
} 
</script>

二:页面调用代码;
代码

<table width="768" border="0" cellspacing="0" cellpadding="0"> 
<!-- tab上方按钮行 --> 
<tr valign="bottom"> 
<td height="37" background="../images/a_06.jpg"> 
<table border="0" cellspacing="0" cellpadding="0"> 
<tr> 
<td width="16" height="32" valign="bottom"></td> 
<td ex="true" width="94" height="32" align="right" valign="middle" background="../images/an_01.jpg" style="cursor:pointer" 
onClick="tabPanelEx(this,'../images/an_02.jpg','../images/an_01.jpg','newTabs','newsTab1')"> 
<div style="width:72px;height:28px;line-height:28px;text-align:left;" class="bllb14">全员教育 </div></td> 
<td width="7" height="32"></td> 
<td ex="true" width="94" height="32" align="right" valign="middle" background="../images/an_02.jpg" style="cursor:pointer" 
onClick="tabPanelEx(this,'../images/an_02.jpg','../images/an_01.jpg','newTabs','newsTab2')" > 
<div style="width:72px;height:28px;line-height:28px;text-align:left;" class="bllb14">医界动态 </div></td> 
</tr> 
</table> 
</td> 
</tr> 
<!-- 间隙 --> 
<tr> 
<td height="5" align="center"></td> 
</tr> 
<!-- 对应内容 --> 
<tr> 
<td align="center"> 
<div id="newTabs"> 
<div id="newsTab1"> 
<table width="768" border="0" cellspacing="0" cellpadding="0"> 
<tr> 
<td width="384" height="240" align="left" valign="top"><p>全员教育</p> 
</td> 
<td width="1" height="240" background="../images/a_07.jpg"></td> 
<td width="384" height="240" align="right" valign="top">全员教育</td> 
</tr> 
</table> 
</div> 
<div id="newsTab2" style="display:none"> 
<table width="768" border="0" cellspacing="0" cellpadding="0"> 
<tr> 
<td width="384" height="240" align="left" valign="top">医界动态</td> 
<td width="1" height="240" background="../images/a_07.jpg"></td> 
<td width="384" height="240" align="right" valign="top">医界动态</td> 
</tr> 
</table> 
</div> 
</div> 
</td> 
</tr> 
</table>

调用解释:
(1)使用的为table,table结构为:
代码

<table width="768" border="0" cellspacing="0" cellpadding="0"> 
<!-- tab上方按钮行 --> 
<tr valign="bottom"> 
<td 第一行菜单 tab> 
<table border="0" cellspacing="0" cellpadding="0"> 
<tr> 
<td 调用onClick="tabPanelEx(this,'../images/an_02.jpg','../images/an_01.jpg','newTabs','newsTab1')" 显示newTabs内的newsTab1> 
<div style="width:72px;height:28px;line-height:28px;text-align:left;" class="bllb14">全员教育 </div></td> 
<td 调用onClick="tabPanelEx(this,'../images/an_02.jpg','../images/an_01.jpg','newTabs','newsTab2')" 显示newTabs内的newsTab2> 
<div style="width:72px;height:28px;line-height:28px;text-align:left;" class="bllb14">医界动态 </div></td> 
</table> 
</td> 
</tr> 
<!-- 间隙 --> 
<tr> 
<td height="5" align="center"></td> 
</tr> 
<!-- 对应内容 --> 
<tr> 
<td align="center"> 
<div id="newTabs"> 
<div id="newsTab1"> 
全员教育 
</div> 
<div id="newsTab2" style="display:none"> 
医界动态 
</div> 
</div> 
</td> 
</tr> 
</table>

完整文件下载