click on webapplication homepage logo admin logs out.

Question

when i click on in my admin panel logo the use logs out ,user redirect to the login page.I dont know why and how to solve this.

 

<div>

<div class="container" id="container">

<div id="header">

<div id="profile_info">

<img src="../Images/avatar.jpg" id="avatar" alt="avatar" />

<p>Welcome <strong>Admin</strong>. <a href="../Admin/Login.aspx">Log out?</a></p>

<%-- <p>System messages: 3. <a href="#">Read?</a></p>--%>

<p class="last_login"><asp:Label ID="lblTime" runat="server" /> </p>

</div>

<div id="logo"><h1><a href="/">AdmintTheme</a></h1></div> (Here in anchor tag given href="/" i dont know why we use /(slash) what is the meaning of this here)

</div><!-- end header -->

<div id="content" >

<div id="top_menu" class="clearfix">

<ul class="sf-menu"> <!-- DROPDOWN MENU -->

<li class="current">