先生成一個table。點擊<thead>部分的話,<tbody>會消失
<table width="175" border="0" id="table1" cellspacing="2">
<thead>
<tr>
<th><acronym style="cursor: hand; " title="在此可以查詢本周具體的采購清單項目">采購管理</acronym></th>
</tr>
</thead>
<tbody>
<tr>
<td class="odd">-<a href="http://localhost:8080/Hotel/purchaseExamine.jsp" target="main">采購作業</a></td>
</tr>
<tr>
<td>-<a href="http://purchaseExamine.jsp" target="main">采購簽核作業</a></td>
</tr>
<tr>
<td class="odd">-采購單打印</td>
</tr>
<tr>
<td>-采購預計一覽表</td>
</tr>
</tbody>
</table>
<table width="175" border="0" id="table1">
<thead>
<tr>
<th><acronym style="cursor: hand; " title="在此可以查詢本周具體的采購清單項目">采購管理</acronym></th>
</tr>
</thead>
<tbody>
<tr>
<td class="odd">-采購作業</td>
</tr>
<tr>
<td>-采購簽核作業</td>
</tr>
<tr>
<td class="odd">-采購單打印</td>
</tr>
<tr>
<td>-采購預計一覽表</td>
</tr>
</tbody>
</table>
<table width="175" border="0" id="table1">
<thead>
<tr>
<th><acronym style="cursor: hand; " title="在此可以查詢本周具體的采購清單項目">采購管理</acronym></th>

</tr>
</thead>
<tbody>
<tr>
<td class="odd">-采購作業</td>

</tr>
<tr>
<td>-采購簽核作業</td>

</tr>
<tr>
<td class="odd">-采購單打印</td>

</tr>
<tr>
<td>-采購預計一覽表</td>

</tr>
</tbody>
</table>
<table width="175" border="0" id="table2">
<thead>
<tr>
<th><acronym style="cursor: hand; " title="在此可以查詢本周具體的采購清單項目">采購管理</acronym></th>

</tr>
</thead>
<tbody>
<tr>
<td class="odd">-采購作業</td>

</tr>
<tr>
<td>-采購簽核作業</td>

</tr>
<tr>
<td>-采購單打印</td>

</tr>
<tr>
<td>-采購預計一覽表</td>

</tr>
</tbody>
</table>
接下來是javaScript代碼

function collapse()
{
var thead = document.getElementsByTagName("thead");

for(var i=0;i<thead.length;i++)
{

thead[i].onclick= function()
{
var tbody = this.parentNode.getElementsByTagName("tbody");
//thead的父節點是table
if(tbody[0].style.display =="")
tbody[0].style.display="none";
else
tbody[0].style.display="";
}
}
var tbody = document.getElementsByTagName("tbody");
//初始化,讓所有的tbody都關閉

for(var i=0;i<tbody.length;i++)
{
tbody[i].style.display="none";
}
}

window.onload = collapse;






























































































接下來是javaScript代碼



































