i have this code for login but its not redirecting to admin page and also need some help getting it ready to asp.net
<!-- Login Starts Here --><link href="TwitterLogin/front2.css" media="screen, projection" rel="stylesheet" type="text/css"><div id="container"><div id="topnav"class="topnav"><asp:HyperLink ID="HyperLink1" runat="server">Criar Conta?</asp:HyperLink> <a href="Registar.aspx" class="signin"><span>Entrar</span></a></div><fieldset id="signin_menu"><form method="post"id="signin"action="~/admin_template/Dashboard.aspx"><label for="username">Username or email</label><input id="username"name="username"value=""title="username"tabindex="4"type="text"><label for="password">Password</label><input id="password"name="password"value=""title="password"tabindex="5"type="password"><p class="remember"><input id="signin_submit"value="Entrar"tabindex="6"type="submit"><input id="remember"name="remember_me"value="1"tabindex="7"type="checkbox"><label for="remember">Lembrar-me?</label></p><p class="forgot"> <A id=forgot_password_link title="Verifique na pasta SPAM do seu e-mail caso ainda não tenha recebido" href="a.aspx">Esqueceu a sua senha?</A> </p><p class="forgot-username"> <A id=forgot_username_link title="Se você se lembra da sua password, tente entrar com o seu e-mail" href="t-aspx">Esqueceu o seu username?</A> </p></form></fieldset></div>