w3c 下的 onclick在firefox失效的問題

各位大大，我的網頁有段代碼如下

<input type="button" class="lightbutton" value="按此開啟/關閉【圖片】上傳" onclick="piclist.style.display=piclist.style.display=='none'?'block':'none'" />  &nbsp;&nbsp;&nbsp;
<table border="0" width="95%" cellspacing="0" cellpadding="0">
<tbody id="piclist" style="display:none">
<tr><td style="border-right: none; border-top: none; border-bottom: none;">
<fieldset style='width:100%'>
        <div style="overflow:auto;height=100%;"> 
          <table border="0" width="100%" cellspacing="0" cellpadding="0">
            
                  <tr> 
                    <td align="left" valign="top" style="border-right: none; border-top: none; border-bottom: none;">
            
                    <input name="up11" type="button" class="lightbutton" id="up11" value="圖片上傳１" onclick="window.open('http://imageshack.us/iframe.php?txtcolor=111111');" />
                       <span style="color: #EC6492">【上傳後可用的連結網址的英文為 Direct link to image】</span> <br />

</td> </tr>
          </table>
        </div></fieldset></td></tr></tbody></table>

在firefox上如果加了w3c的doctype 宣告宣告，就變得無效，請問這段代碼應如何改才可以用得著呢，請各位幫幫忙指教，多謝~[/code]

两种方案：
1.

<input type="button" class="lightbutton" value="按此開啟/關閉【圖片】上傳" onclick="var a=document.getElementById('piclist');a.style.display=a.style.display=='none'?'block':'none'" />

2.

<input id='clickMe'  type="button" class="lightbutton" value="按此開啟/關閉【圖片】上傳"/>
 <script>
  var  b = document.getElementById('clickMe'); 
  b.addEventListener("click",
	  function()
	  {
		  var piclist = document.getElementById('piclist');
		  piclist.style.display= (piclist.style.display=='none'?'block':'none'); 
	  },false);
 </script>

多謝大大的幫忙，終於都解決了，非常感激~~