JS函数运行错误啊，大家看看

document.wp是对象吗？
你的代码没有全部贴出来是吗？我看着觉得怪怪的。

解决方案 »

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不是，var wp=new Array("WPQ2","WPQ3","WPQ4","WPQ5","WPQ6");  这里中的WPQ2等是DIV层，我是想根据参数wpqstr来显示层
试试这样，不行再改：
function OnShowClick(wpqstr)
{
    var wp=new Array("WPQ2","WPQ3","WPQ4","WPQ5","WPQ6");
    var j;
if(wpqstr == null){i="WPQ2";}
for(j=2;j<7;j++)
{
if(wp[j-2] != wpqstr){
  eval("document."+wp[(j-2)]+".style.display='none';";
  }
  else
   eval("document."+wp[j-2]+".style.display="block";
}
middlespace.style.display='none';
}
错了，改正：function OnShowClick(wpqstr)
{
    var wp=new Array("WPQ2","WPQ3","WPQ4","WPQ5","WPQ6");
    var j;
if(wpqstr == null){i="WPQ2";}
for(j=2;j<7;j++)
{
if(wp[j-2] != wpqstr){
  eval("document."+wp[j-2]+".style.display='none';";
  }
  else
   eval("document."+wp[j-2]+".style.display='block';");
}
middlespace.style.display='none';
}
function OnShowClick(wpqstr)
{
    var wp=new Array("WPQ2","WPQ3","WPQ4","WPQ5","WPQ6");
    var j;
if(wpqstr == null){i="WPQ2";}
for(j=2;j<7;j++)
{
if(wp[j-2] != wpqstr){
  eval("document."+wp[j-2]+".style.display='none';");
  }
  else
   eval("document."+wp[j-2]+".style.display='block';");
}
middlespace.style.display='none';
}
if(wpqstr == null){i="WPQ2";}
                   ^
你这个i是什么意思？
是这个意思吗
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<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>New Page 1</title>
<script>
function OnShowClick(wpqstr)
{
    var wp=new Array("WPQ2","WPQ3","WPQ4","WPQ5","WPQ6");
    var j;
if(wpqstr == null){i="WPQ2";}
for(j=2;j<7;j++)
{
if(wp[j-2]!= wpqstr)
   { document.all(wp[j-2]).style.display="none";}
else
   document.all(wp[j-2]).style.display="block";
}
document.all("middlespace").style.display="none";
}
</script></head><body>
<input type="button" name="aa" value="Microsoft Outlook Notes" onclick="OnShowClick('WPQ2')">
<div name="WPQ2" id="WPQ2" style="display:">wpq2</div>
<div name="WPQ3" id="WPQ3" style="display:">wpq3</div>
<div name="WPQ4" id="WPQ4" style="display:">wpq4</div>
<div name="WPQ5" id="WPQ5" style="display:">wpq5</div>
<div name="WPQ6" id="WPQ6" style="display:">wpq6</div>
<div name="middlespace" id="middlespace" style="display:">middlespace</div></body></html>
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是这样子的，搞定了，谢谢诸位！BTW：eval 是什么意思？
eval 函数允许 JScript 源代码的动态执行