一下如何处理，请动手赐源码

.aspx中添加一个javascript函数：
<script language=javascript>
function ShowHide(id)
{
  document.getElementById("panel1").style.visibility="hidden";
  document.getElementById("panel2").style.visibility="hidden";
  document.getElementById("panel3").style.visibility="hidden";  if (id != "")
  {
    document.getElementById(id).style.visibility="visible";
  }
}在.aspx.cs的Page_Load中：
Label1.Attributes["onMouseOver"] = "ShowHide('panel1')";
Label1.Attributes["onMouseOut"] = "ShowHide('')";
Label2.Attributes["onMouseOver"] = "ShowHide('panel2')";
Label2.Attributes["onMouseOut"] = "ShowHide('')";
Label3.Attributes["onMouseOver"] = "ShowHide('panel3')";
Label3.Attributes["onMouseOut"] = "ShowHide('')";

解决方案 »

  1.   

    <script language=javascript>
    function ShowHide(id)
    {
      document.getElementById("panel1").style.visibility="hidden";
      document.getElementById("panel2").style.visibility="hidden";
      document.getElementById("panel3").style.visibility="hidden";  if (id != "")
      {
        document.getElementById(id).style.visibility="visible";
      }
    }
    <p id="p01" style="VISIBILITY: hidden">aaa</p>
    <p id="p02" style="VISIBILITY: hidden">bbb</p>
    <p id="p03" style="VISIBILITY: hidden">ccc</p>
    <label onmouseover="javascript:ShowHide('p01')">aaa</label>
    <label onmouseover="javascript:ShowHide('p02')">bbb</label>
    <label onmouseover="javascript:ShowHide('p03')">ccc</label>
      

  2.   

    <script language=javascript>
    function ShowHide(id)
    {
      document.getElementById("panel1").style.visibility="hidden";
      document.getElementById("panel2").style.visibility="hidden";
      document.getElementById("panel3").style.visibility="hidden";  if (id != "")
      {
        document.getElementById(id).style.visibility="visible";
      }
    }
    </script><p id="p01" style="VISIBILITY: hidden">aaa</p>
    <p id="p02" style="VISIBILITY: hidden">bbb</p>
    <p id="p03" style="VISIBILITY: hidden">ccc</p>
    <label onmouseover="javascript:ShowHide('p01')">aaa</label>
    <label onmouseover="javascript:ShowHide('p02')">bbb</label>
    <label onmouseover="javascript:ShowHide('p03')">ccc</label>
      

  3.   

    仅把以上代码加在页面设计的html内容中即可！
      

  4.   

    补充一下：
    <script language=javascript>
    function ShowHide(id)
    {
      document.getElementById("panel1").style.visibility="hidden";
      document.getElementById("panel2").style.visibility="hidden";
      document.getElementById("panel3").style.visibility="hidden";  if (id != "")
      {
        document.getElementById(id).style.visibility="visible";
      }
    }
    </script><p id="p01" style="VISIBILITY: hidden">aaa</p>
    <p id="p02" style="VISIBILITY: hidden">bbb</p>
    <p id="p03" style="VISIBILITY: hidden">ccc</p>
    <label onmouseover="javascript:ShowHide('p01')" onmouseout="javascript:ShowHide('')">aaa</label>
    <label onmouseover="javascript:ShowHide('p02')" onmouseout="javascript:ShowHide('')">bbb</label>
    <label onmouseover="javascript:ShowHide('p03')" onmouseout="javascript:ShowHide('')">ccc</label>
      

  5.   

    或者：好象你要的是这种意思喔 <script language=javascript>function ShowP01()
    {
      document.getElementById("p01").style.visibility="visible";
      document.getElementById("p02").style.visibility="hidden";
      document.getElementById("p03").style.visibility="hidden";
    }
    function ShowP02()
    {
      document.getElementById("p01").style.visibility="hidden";
      document.getElementById("p02").style.visibility="visible";
      document.getElementById("p03").style.visibility="hidden";
    }
    function ShowP03()
    {
      document.getElementById("p01").style.visibility="hidden";
      document.getElementById("p02").style.visibility="hidden";
      document.getElementById("p03").style.visibility="visible";
    }
    </script> <body MS_POSITIONING="GridLayout">
    <form id="JavaScript" method="post" runat="server">
    <p id="p01" style="VISIBILITY: hidden">aaa</p>
    <p id="p02" style="VISIBILITY: hidden">bbb</p>
    <p id="p03" style="VISIBILITY: hidden">ccc</p>
    <label onmouseover="javascript:ShowP01()">aaa</label>
    <label onmouseover="javascript:ShowP02()">bbb</label>
    <label onmouseover="javascript:ShowP03()">ccc</label>
    </form>
    </body>