diff --git a/OI/CircularDetalleB.aspx b/OI/CircularDetalleB.aspx
index d970ca22d..087a1d95e 100644
--- a/OI/CircularDetalleB.aspx
+++ b/OI/CircularDetalleB.aspx
@@ -84,6 +84,8 @@
                 <div class="bodycorreos">
                     <asp:Literal ID="LtlPara" runat="server"></asp:Literal>
                     <asp:TextBox ID="TxtCorreo" Enabled ="false" runat="server" CssClass="form-control " TextMode="MultiLine" Rows="3"></asp:TextBox>
+                    <asp:RequiredFieldValidator ID="RfvCorreo" runat="server" ControlToValidate="TxtCorreo" Display="None" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''Correo''</b> es necesario, por favor ingréselo." ValidationGroup="GrpCircular"></asp:RequiredFieldValidator>
+                    <ajax:ValidatorCalloutExtender ID="VCEFolio" runat="server" HighlightCssClass="vco" TargetControlID="RfvCorreo" Width="300px"></ajax:ValidatorCalloutExtender>
                     <%--
                     <asp:LinkButton ID="Lnkuser1" runat="server" CssClass="linkCorreo" data-toggle="confirmation" data-popout="true" data-original-title="¿Está seguro que desea eliminar Correo?" data-btn-ok-label="si">Jorge caudillo(jcaudillo@adsistemas.mx)</asp:LinkButton>;
             <asp:LinkButton ID="Lnkuser2" runat="server" CssClass="linkCorreo" data-toggle="confirmation" data-popout="true" data-original-title="¿Está seguro que desea eliminar Correo?" data-btn-ok-label="si">Julian Moreno(Julianmoreno@adsistemas.mx)</asp:LinkButton>;
@@ -106,6 +108,8 @@
                 </div>
                 <div class="bodycorreos">
                     <asp:TextBox ID="TxtAsunto" runat="server" CssClass="form-control "></asp:TextBox>
+                    <asp:RequiredFieldValidator ID="RfvAsunto" runat="server" ControlToValidate="TxtAsunto" Display="None" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''Asunto''</b> es necesario, por favor ingréselo." ValidationGroup="GrpCircular"></asp:RequiredFieldValidator>
+                    <ajax:ValidatorCalloutExtender ID="VceAsunto" runat="server" HighlightCssClass="vco" TargetControlID="RfvAsunto" Width="300px"></ajax:ValidatorCalloutExtender>
                 </div>
             </div>
 
@@ -126,11 +130,13 @@
                 </div>
                 <div class="bodycorreos ">
                     <asp:TextBox ID="TxtCircular" runat="server" CssClass="form-control ADSckeditor" TextMode="MultiLine" Rows="3"></asp:TextBox>
+                    <asp:RequiredFieldValidator ID="RfvCircular" runat="server" ControlToValidate="TxtCircular" Display="None" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''Cuerpo''</b> es necesario, por favor ingréselo." ValidationGroup="GrpCircular"></asp:RequiredFieldValidator>
+                    <ajax:ValidatorCalloutExtender ID="VceCircular" runat="server" HighlightCssClass="vco" TargetControlID="RfvCircular" Width="300px"></ajax:ValidatorCalloutExtender>
                 </div>
             </div>
             
                         <div class="text-center">
-                            <asp:Button ID="BtnGuardar" OnClick="BtnGuardar_Click" runat="server" CssClass="btn btn-primary" Text="Guardar" Visible="true" ValidationGroup="GrpGuardar" />
+                            <asp:Button ID="BtnGuardar" OnClick="BtnGuardar_Click" runat="server" CssClass="btn btn-primary" Text="Guardar" Visible="true" ValidationGroup="GrpCircular" />
                             <asp:Button ID="BtnEliminar" OnClick="BtnEliminar_Click" runat="server" CssClass="btn btn-danger" Text="Eliminar" Visible="false" data-toggle="confirmation" data-popout="true" data-original-title="Confirmar" data-btn-ok-label="si" />
                         </div>