onclick事件设置div的visibility

if(getmenu.style.visibility='hidden')------------------------------------>if(getmenu.style.visibility=='hidden')

解决方案 »

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<head>
<script language="JavaScript">
function showmenu(getmenu)
{
if(getmenu.style.visibility=='hidden')
{
getmenu.style.visibility='visible';
}
else if(getmenu.style.visibility=='visible')
{
getmenu.style.visibility='hidden';
}
}
</script>
</head><body>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
  <tr>
    <td onClick="showmenu(dmenu)"><div align="center">查看</div></td>
  </tr>
  <tr>
    <td><div id="dmenu" style="visibility:hidden">
        <table width="100%" border="1">
          <tr>
            <td> </td>
          </tr>
          <tr>
            <td> </td>
          </tr>
        </table>
      </div></td>
  </tr>
  <tr>
    <td> </td>
  </tr>
</table>
</body>
<script language="JavaScript">
function showmenu(getmenu)
{
if(getmenu.style.visibility='hidden')
{
getmenu.style.visibility='visible';
}else
{
getmenu.style.visibility='hidden';
}
}
</script>
不好意思，上面的写错了。
<script language="JavaScript">
function showmenu(getmenu)
{
if(getmenu.style.visibility=='hidden')
{
getmenu.style.visibility=='visible';
}
else if(getmenu.style.visibility=='visible')
{
getmenu.style.visibility=='hidden';
}
}
</script>
楼主的
if(getmenu.style.visibility='hidden')
{
getmenu.style.visibility='visible';
}
else if(getmenu.style.visibility='visible')
{
getmenu.style.visibility='hidden';
}
可改为:
if(getmenu.style.visibility=='hidden')
{
getmenu.style.visibility='visible';
}
else
{
getmenu.style.visibility='hidden';
}
因为=与==是两个不同的概念,一个是赋值,一个是等于还有中间这一句if(getmenu.style.visibility=='visible')显然是多余的好人做到底:)
<script language="JavaScript">
function showmenu(e)
{
    e.style.display=(e.style.display=="none")?"":"none";
}
</script><td onClick="showmenu(dmenu)"><div align="center">查看</div></td><div id="dmenu" style="display:none">