html5 - dynamically change css class name -


below code: 

<asp:listview id="lviewmenu" runat="server">     <itemtemplate>         <li class="context-menu-group"><span class="color-bar color-13"></span>             <asp:linkbutton id="lbtnmenu" runat="server" text='<%# eval("menuname")%>' onclick="lbtnmenu_click"></asp:linkbutton>         </li>     </itemtemplate> </asp:listview>

and need change class name of <li> context-menu-group active when linkbutton clicked on onclick() how?


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