How to display some stuff in the same page instead of redirecting to another page while clicking the submenu of asp:menu?

I am using asp:menu. My aspx code is:

<body>
    <form id="form1" runat="server">
    <div>
        <asp:Menu ID="Menu_Library" runat="server">
        </asp:Menu>

    </div>
    </form>
</body>

I am generating the sub menu items (i.e) the childitems dynamically.. If i click the sub menu items it redirects me to a page which i specify like this in my code behind,

MenuItem childItem = new MenuItem();
childItem.NavigateUrl = "OtherPage.aspx";

But what i need is when i click on sub menu items, it should display some items in same page..

How to achieve this? Please help me.. It can be either in javascript or code behind.. I don't want it to navigate it to another page instead perform the action in same page..

Solution

Instead of using the Page link you can use javascript for that and any div you can show or hide in it.

Your Code:

MenuItem childItem = new MenuItem();
childItem.NavigateUrl = "OtherPage.aspx";

Change with:

MenuItem childItem = new MenuItem();
childItem.NavigateUrl = "javascript: return GoToSomeLink('"+ count +"');"; //You can pass parameters also

Javascript function:

<script type="text/javascript">
function GoToSomeLink(obj) //if parameters are used use them here also.
{
    var count=parseInt(obj); //use this count varible anywhere in the function
    $(#menuDiv).show(); /any div show or hide
    return false;

}
 </script>