Ajax Manager causes type=email not working

[L]

hi

It seems that ajaxmanager is causing input type email not working when button click. But when i removed ajaxmanager and do a button click, the input display "Please include an "@" in the email" message.

 

How should i resolve this as i need to include ajaxmanager?

Here is my code;

 

  <div class="col-sm-6">
                       <div class="form-group">
                          <input id="txtUserEmail" type="email" class="form-control" placeholder="email address" required runat="server" >
                        </div>
                        <div class="form-group">
                          <input id="txtUserPassword" type="password" class="form-control" placeholder="password" required runat="server" >
                        </div>
                       <div class="form-group">
                           <asp:Button ID="btnLogin" runat="server" CssClass="btn btn-block" Text="login" OnClick="btnLogin_Click" />
                       </div>
                      <div class="form-group" style="color:#f85659">
                          <asp:Literal ID="ltrLoginMessage" runat="server" Text="email or password incorrect. try again." Visible="false"></asp:Literal>
                      </div>
                  </div>

Thanks a lot