Show a div in asp.net on condition - asp.net

Question

Is it Possible to show/notshow a div in asp.net depending if cookies are set or not?
Note: the div is an html form invoked with javascript in asp.net.
Here the code in asp.net
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" runat="Server">
<script type="text/javascript">
$(document).ready(function () { $('#'<%= webform.ClientID %>).load('popup.html');
</script><div id="webform" runat="Server">
</div>
</asp:Content>
And in code behind:
protected void Page_Load(object sender, EventArgs e)
{ webform.Visible= true;}
Note that the webform is visible when the code is: (nothing is code behind)
<script type="text/javascript">
$(document).ready(function () { $('#webform').load('popup.html'); })
</script>
<div id="webform" >
</div>
</asp:Content>
The goal is to make this visible or not depending if cookie has been set or not.
I already tested that the form (in HTML) is setting the cookies(with javascript through webform)

Answer 1

Here's the logic for you to try
Make your DIV a server control by adding runat="server" property
Also have an ID property for your DIV tag
set this DIV's visibility from your code behind based on the Cookie values
E.g.
Markup code
<div id="MyDiv" runat="server"></div>
Code behind
MyDiv.Visible = true; // set this based on the cookie value
UPDATE 1
This is how you'd use your DIV in Scripts
<script type="text/javascript">
$(document).ready(function () { $('#'<%= MyDiv.ClientID %>).load('popup.html'); })
</script>
UPDATE 2
I made a mistake in my UPDATE 1. You should write the JQuery selector like '#<%= MyDiv.ClientID %>' and not like '#'<%= MyDiv.ClientID %> (Note the ' marks).
And, you also made a mistake in your script. You've missed a }) at the end of the script.
Anyway, here's the working solution. (I tried it so don't tell it's not working :-))
<script type="text/javascript">
$(document).ready(function () { $('#<%= webform.ClientID %>').load('popup.html');} )
</script>
<div id="webform" runat="Server"></div>
Hope you could understand this.