Call Server Side method on HTML LI click in ASP.Net

I have menu in a list (<LI> tag) in .aspx page, Now i want when i click on logout menu it will Abondon all the session or i want to execute some other method which i created in .CS file

<li id="l1" class="Home" onclick="<%#Eval("Session.Abondon();") %>"><a href="LoginPage.aspx">Logout</a></li>

Best Regards, Saalim