在服务器上（C＃）：

 errorDiv.Style [  visibility] =  ; 

在Javascript：

  var  errorDiv =  document  .getElementById（  errorDiv跨度>）; 
 errorDiv.style.visibility =  ; 

Hello
I have the folowing tag.I want to convert visibility Style from hidden to visible.
I''m using C#.
can you help me?

<div id="errorDiv" class="errorDiv" runat="server" style="visibility: hidden;">
    <asp:Label ID="errorLbl" CssClass="errorLbl" runat="server"></asp:Label>
</div>

On the server (C#):

errorDiv.Style["visibility"] = "";

In Javascript:

var errorDiv = document.getElementById("errorDiv");
errorDiv.style.visibility= "";