JS实现鼠标点击展开/隐藏表格行

<title>JS实现鼠标点击展开/隐藏表格行_网页代码站()</title>

<script language="javascript">

function TestBlack(TagName){

var obj = document.getElementById(TagName);

if(obj.style.display==""){

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}

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<table width="760" border="0" cellspacing="0" cellpadding="0">

<tr οnclick="TestBlack('divc');">

<td width="760" height="20" bgcolor="#00CCFF">Click Me!</td>

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<tr id="divc">

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