求一主流浏览器都能用的显示/隐藏层的方法，最好有源程序。

Question

<DIV style="DISPLAY: none〉</DIV> 不显示
<DIV style="DISPLAY:其它值"></div>都显示

Answer 1

<script language="JavaScript">
  function openDiv(divName,mapName){
      divName.style.display = '';
      document.getElementById(mapName).src='../images/arrow_up_big.gif';
    
  }  function closeDiv(divName,mapName){
divName.style.display = 'none';
      document.getElementById(mapName).src='../images/arrow_down_big.gif';
  }  function switchDiv(oneDivName,map1,twoDivName,map2,threeDivName,map3) {
    if(oneDivName.style.display == '') {
      closeDiv(oneDivName,map1);
    } else {
      closeDiv(twoDivName,map2);
      closeDiv(threeDivName,map3);
      openDiv(oneDivName,map1);
    }
  }
</script>
<div class="icon">关键字查询<a href="#" onClick="javascript:switchDiv(key,'keyMap',com,'comMap',cat,'catMap')"><img  id="KeyMap" src="../images/arrow_down_big.gif" width="19" height="13" border="0"></a> &nbsp;&nbsp;组合查询<a href="#" onClick="switchDiv(com,'comMap',key,'keyMap',cat,'catMap')"><img id="comMap" src="../images/arrow_down_big.gif" width="19" height="13" border="0"></a>&nbsp;&nbsp;全文检索<a href="#" onClick="switchDiv(cat,'catMap',com,'comMap',key,'keyMap')"><img id="catMap" src="../images/arrow_down_big.gif" width="19" height="13" border="0"></a> </div>
<p>      
<div style="display:none" id="key">
        <table border="0" width="100%">
           <tr> 
             <td width="73%" align="right" class="ccLabel">请输入要查询的关键字：<input type="text" size="50"></td>
             <td width="27%"><input type="button" value="查询" class="ccIcon"></td>
           </tr>
           <tr> 
             <td colspan="2" align="center"><font color="#FF0000">可以填写多个关键字，使用and、or、not连接</font></td>
           </tr> 
        </table>
      <div class="ccLabel" align="center">在本目录下查询<input type=checkbox unchecked> </div></div>
      
<div style="display:none" id="com">
<div align="center" class="ccLabel">资源编号：<input type="text" class="red">资源名称： <input type="text" class="red"></div>
<div align="center" class="ccLabel">&nbsp;&nbsp;&nbsp;&nbsp;关键字：<input type="text" class="red" size="54"></div>
<div align="center" class="ccLabel">格式：<input type="text" class="red">作者：<input type="text" class="red"></div>
<br>
<br>
<div align="center"><input type="button" class="ccIcon" value="查询">&nbsp;&nbsp;&nbsp;&nbsp;<input type="button" class="ccIcon" value="重设"></div><br>
<div class="ccLabel" align="center">在本目录下查询<input type=checkbox unchecked> </div>
</div><div style="display:none" id="cat">
<div align="center" class="ccLabel">请输入全文检索的关键字：<input type=text></div><br><br>
<div align="center"><input type=submit value="搜索" class="ccIcon"></div>
</div>

Answer 2

谢谢两位的解答我的意思是说要各种浏览器都能用的比如IE，Netscape,Mozillo等越多越好

Answer 3

<input type=button value="Block" onclick="oSpan.style.display='block'">
<input type=button value="None" onclick="oSpan.style.display='none'">
<SPAN id="oSpan" style="display:none;">灰豆宝宝.net</SPAN>