I am trying to simulate a click from #btn_new_login to #btn_login. So when the user click #btn_new_login, it will simulate a click on #btn_login as well.
<button id="btn_new_login" onclick="document.getElementById('btn_login').click();">Login</button>
<asp:Button ID="btn_login" runat="server" Text="Login" OnClientClick="return checkfields()" OnClick="btn_login_Click" />