diff --git a/Ventas/PV.aspx b/Ventas/PV.aspx
index 84ed1799d..71004d7e2 100644
--- a/Ventas/PV.aspx
+++ b/Ventas/PV.aspx
@@ -2576,7 +2576,7 @@
                                 </button>
                                 <h4 class="modal-title" id="myModalLabelVenta">Registrar Venta</h4>
                             </div>
-                            <div class="modal-body">
+                            <div class="modal-body" onkeydown="return (event.keyCode!=13)">
                                 <div class="row">
                                     <div id="DivDatosVenta" runat="server" class="col-md-12">
                                         <div class="portlet light xspadding bordered">
@@ -2595,7 +2595,7 @@
                                                     <div class="row">
                                                         <div class="col-md-4">
                                                             <div class="form-group form-md-line-input input-iconright">
-                                                                <asp:TextBox ID="TxtCantidad" onkeyup="Recalcula();" Text="1" onkeypress="DisableEnterKey(event);" runat="server" CssClass="form-control " ClientIDMode="Static" MaxLength="12" ValidationGroup="GrpAddVenta" Width="60px"></asp:TextBox>
+                                                                <asp:TextBox ID="TxtCantidad" inputmode="numeric" onkeyup="Recalcula();" Text="1" runat="server" CssClass="form-control " ClientIDMode="Static" MaxLength="12" ValidationGroup="GrpAddVenta" Width="60px"></asp:TextBox>
                                                                 <ajax:FilteredTextBoxExtender ID="SoloNumerosCantidad" runat="server" TargetControlID="TxtCantidad" FilterType="Custom, Numbers" ValidChars="." />
                                                                 <asp:RequiredFieldValidator ID="RFVCantidad" runat="server" ControlToValidate="TxtCantidad" Display="None" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''Cantidad''</b> es necesario, por favor ingréselo." ValidationGroup="GrpAddVenta"></asp:RequiredFieldValidator>
                                                                 <ajax:ValidatorCalloutExtender ID="VCOCantidad1" runat="server" HighlightCssClass="vco" TargetControlID="RFVCantidad" Width="300px"></ajax:ValidatorCalloutExtender>
@@ -2666,7 +2666,6 @@
                                                     </div>
 
                                                     <div id="DivRecepcionUsados" runat="server">
-
                                                         <div class="row">
                                                             <div class="col-md-6">
                                                                 <label>Modelo:</label>
@@ -2677,7 +2676,7 @@
                                                             <div class="col-md-6">
                                                                 <label>Año:</label>
                                                                 <br />
-                                                                <asp:TextBox ID="TxtAnioVehiculo" runat="server" Height="100%" Width="100%" CssClass="form-control" CausesValidation="true" MaxLength="500"></asp:TextBox>
+                                                                <asp:TextBox ID="TxtAnioVehiculo" type="number" runat="server" Height="100%" Width="100%" CssClass="form-control" CausesValidation="true"></asp:TextBox>
                                                             </div>
                                                         </div>
                                                         <div class="row">
@@ -2709,12 +2708,6 @@
                                                                                 <ajax:FilteredTextBoxExtender ID="FTBECantidad" runat="server" TargetControlID="TxtCantidad" FilterType="Custom, Numbers" ValidChars="." />
                                                                             </ItemTemplate>
                                                                         </asp:TemplateField>
-                                                                        <%--                                                                    <asp:TemplateField HeaderText="Modelo" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="30%">
-                                                                        <ItemTemplate>
-                                                                            <asp:DropDownList ID="DdlModeloAuto" CssClass="form-control input-sm select2me" runat="server" AppendDataBoundItems="true" CausesValidation="true" DataTextField="ModeloMarca" DataValueField="CveModeloAuto">
-                                                                            </asp:DropDownList>
-                                                                        </ItemTemplate>
-                                                                    </asp:TemplateField>--%>
                                                                         <asp:TemplateField HeaderText="BCI" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="25%">
                                                                             <ItemTemplate>
                                                                                 <asp:DropDownList ID="DdlBCIUsado" CssClass="form-control input-sm select2me" runat="server" AppendDataBoundItems="true" CausesValidation="true" DataTextField="BCI" DataValueField="CveBCIUsado" Width="90%">
@@ -2727,22 +2720,12 @@
                                                         </div>
                                                     </div>
 
-                                                    <%--                                                    <br />
-                                                    <div class="row">
-                                                        <div class="col-md-7">
-                                                            <label>BCI:</label>
-                                                            <br />
-                                                            <asp:DropDownList ID="DdlBCIUsado" CssClass="form-control input-sm select2me" runat="server" AppendDataBoundItems="true" CausesValidation="true" DataTextField="BCI" DataValueField="CveBCIUsado" Width="200px">
-                                                            </asp:DropDownList>
-                                                        </div>
-                                                    </div>--%>
-
                                                     <br />
 
                                                     <div class="row">
                                                         <div class="col-md-3">
                                                             <div class="form-group form-md-line-input input-iconright">
-                                                                <asp:TextBox ID="TxtPrecio" runat="server" onkeypress="setFocus(event,'LbAgregar');" onkeyup="Recalcula();" CausesValidation="true" lang="nb" ClientIDMode="Static" Text="0.00" MaxLength="12" ValidationGroup="GrpAddVenta" Width="76px" CssClass="form-control "></asp:TextBox>
+                                                                <asp:TextBox ID="TxtPrecio" inputmode="numeric" runat="server" onkeyup="Recalcula();" CausesValidation="true" lang="nb" ClientIDMode="Static" Text="0.00" MaxLength="12" ValidationGroup="GrpAddVenta" Width="76px" CssClass="form-control "></asp:TextBox>
                                                                 <ajax:FilteredTextBoxExtender ID="FilteredTextBoxExtender4" runat="server" TargetControlID="TxtPrecio" FilterType="Custom, Numbers" ValidChars="." />
                                                                 <asp:RequiredFieldValidator ID="RFVPrecio" runat="server" ControlToValidate="TxtPrecio" Display="None" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''Precio''</b> es necesario, por favor ingréselo." ValidationGroup="GrpAddVenta"></asp:RequiredFieldValidator>
                                                                 <ajax:ValidatorCalloutExtender ID="VCPrecio" runat="server" HighlightCssClass="vco" TargetControlID="RFVPrecio" Width="300px"></ajax:ValidatorCalloutExtender>
@@ -2753,7 +2736,7 @@
                                                         </div>
                                                         <div class="col-md-3">
                                                             <div class="form-group form-md-line-input input-iconright">
-                                                                <asp:TextBox ID="TxtDescuento" runat="server" onkeypress="setFocus(event,'LbAgregar');" onkeyup="Recalcula();" CausesValidation="true" lang="nb" ClientIDMode="Static" Text="0.00" MaxLength="12" ValidationGroup="GrpAddVenta" Width="100px" CssClass="form-control "></asp:TextBox>
+                                                                <asp:TextBox ID="TxtDescuento" inputmode="numeric" runat="server" onkeyup="Recalcula();" CausesValidation="true" lang="nb" ClientIDMode="Static" Text="0.00" MaxLength="12" ValidationGroup="GrpAddVenta" Width="100px" CssClass="form-control "></asp:TextBox>
                                                                 <ajax:FilteredTextBoxExtender ID="FilteredTextBoxExtender2" runat="server" TargetControlID="TxtDescuento" FilterType="Custom, Numbers" ValidChars="." />
                                                                 <asp:CustomValidator ID="CVDescuento" runat="server" ClientValidationFunction="ValidaDecimal6digits" ControlToValidate="TxtDescuento" Display="None" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''Descuento''</b> no tiene el formato correcto. Por favor rectifique y vuelva a intentar." ValidateEmptyText="True" ValidationGroup="GrpAddVenta"></asp:CustomValidator>
                                                                 <ajax:ValidatorCalloutExtender ID="ValidatorCalloutExtender6" runat="server" HighlightCssClass="vco" TargetControlID="CVDescuento" Width="300px"></ajax:ValidatorCalloutExtender>
@@ -2777,7 +2760,7 @@
                                                             </div>
                                                             <div class="col-md-6" align="right" id="divagregrarotrops" runat="server">
                                                                 <label>Agregar otro Producto:</label>
-                                                                <asp:CheckBox ID="ChkAgregar" runat="server" Checked="true" />
+                                                                <asp:CheckBox ID="ChkAgregar" runat="server" Checked="true"  />
                                                             </div>
                                                         </div>
                                                         <div class="row">
@@ -2988,7 +2971,7 @@
                                                             </div>
                                                         </div>
                                                         <div class="col-md-4">
-                                                            <asp:Button ID="BtnCalcularImporteAjuste" CssClass="btn green-haze btn-outline btn-circle btn-sm" OnClick="BtnCalcularImporteAjuste_Click" runat="server" Text="Recalcular" />
+                                                            <asp:Button ID="BtnCalcularImporteAjuste" CssClass="btn green-haze btn-outline btn-circle btn-sm" OnClick="BtnCalcularImporteAjuste_Click" runat="server" Text="Recalcular" UseSubmitBehavior="false" />
                                                         </div>
                                                     </div>
                                                 </div>
@@ -3000,8 +2983,8 @@
                             <div class="modal-footer">
                                 <asp:UpdatePanel ID="UpAgregar" runat="server" UpdateMode="Conditional">
                                     <ContentTemplate>
-                                        <asp:Button ID="BtnCalculaMesesUso" Text="" OnClick="BtnCalculaMesesUso_Click" ClientIDMode="Static" Style="display: none;" runat="server" />
-                                        <asp:Button ClientIDMode="Static" ID="LnkAgregarPS" OnClick="LnkAgregarPS_Click" runat="server" CssClass="btn btn-primary" Text="Agregar" ValidationGroup="GrpAddVenta" />
+<%--                                        <asp:Button ID="BtnCalculaMesesUso" Text="" OnClick="BtnCalculaMesesUso_Click" ClientIDMode="Static" Style="display: none;" runat="server" />--%>
+                                        <asp:Button ClientIDMode="Static" ID="LnkAgregarPS" OnClick="LnkAgregarPS_Click" runat="server" CssClass="btn btn-primary" Text="Agregar" ValidationGroup="GrpAddVenta" UseSubmitBehavior="false" />
                                         <button type="button" class="btn btn-default" data-dismiss="modal">Cancelar</button>
                                     </ContentTemplate>
                                 </asp:UpdatePanel>
@@ -3067,9 +3050,9 @@
             }
         }
 
-        function CalculaMesesUso() {
-            $get("BtnCalculaMesesUso").click();
-        }
+        //function CalculaMesesUso() {
+        //    $get("BtnCalculaMesesUso").click();
+        //}
 
         function ConvertirDllsPesos() {
             var totalPesos = FormatoNumero(ToDouble($get('TxtTotal').value) * ToDouble($get('TxtTipoCambio').value), 2)
diff --git a/Ventas/PV.aspx.vb b/Ventas/PV.aspx.vb
index ed5039389..0c1cf7a08 100644
--- a/Ventas/PV.aspx.vb
+++ b/Ventas/PV.aspx.vb
@@ -1097,7 +1097,7 @@ Partial Class PV
             'ImgCerrarEstadoCaja.Attributes.Add("OnClick", "$('#DivEstadoCaja').hide();")
             TxtPorDescP.Attributes.Add("onKeyUp", "CalculaDescuento();")
             TxtDescP.Attributes.Add("onKeyUp", "CalculaDescuentoMonto();")
-            TxtFechaAjuste.Attributes.Add("onchange", "CalculaMesesUso();")
+            'TxtFechaAjuste.Attributes.Add("onchange", "CalculaMesesUso();")
 
             CreaDTmpC()
             CreaDTmpF()
@@ -5917,13 +5917,20 @@ Partial Class PV
             TxtPrecio.Enabled = Not Dr("CveVenta").ToString.ToEntero > 0
         End If
     End Sub
-    Protected Sub BtnCalculaMesesUso_Click(sender As Object, e As EventArgs)
-        CalculaMesesUso()
-    End Sub
+    'Protected Sub BtnCalculaMesesUso_Click(sender As Object, e As EventArgs)
+    '    CalculaMesesUso()
+    'End Sub
 
-    Private Sub CalculaMesesUso()
+    Private Function CalculaMesesUso() As Boolean
         Dim FechaI As Date = TxtFechaAjuste.Text.ToDate.AddDays(1)
         Dim FechaF As Date = Now
+
+        If FechaI.AddDays(-1) > FechaF Then
+            TxtFechaAjuste.Text = FechaF.ToString("dd/MM/yyyy")
+            Alert("La fecha de ajuste debe ser menor a la fecha actual", TipoMensaje.ToastAdventencia)
+            Return False
+        End If
+
         Dim Dia As Integer = FechaI.Day
         Try
             'validación adicional, para saber si el mes tiene 31 días y el actua es menor.
@@ -5941,16 +5948,15 @@ Partial Class PV
 
             TxtMesesUso.Text = MesesTrascurridos.ToString
 
-            CalculaPorcentajeAjuste()
         Catch ex As Exception
             OnError("Ocurrió un error al calcular los meses de uso", ex)
         End Try
 
-    End Sub
+        Return True
+    End Function
 
     Protected Sub DdlPSAjuste_selectedindexchange(sender As Object, e As EventArgs)
         If DdlPSAjuste.SelectedValue.ToEntero > 0 AndAlso DdlFacturas.SelectedValue.ToEntero > 0 Then
-
             Dim Contador As Integer = 1
             Dim PUFactura As Decimal = 0
             For Each Dr As DataRow In DtPUFacturas.Rows
@@ -5960,7 +5966,6 @@ Partial Class PV
                 Contador += 1
             Next
             TxtPUFactura.Text = PUFactura.FormatoNumero(2)
-
         End If
 
         If DdlPSAjuste.SelectedValue.ToEntero > 0 AndAlso DdlFacturas.SelectedValue.ToEntero <= 0 Then
@@ -6000,8 +6005,9 @@ Partial Class PV
         If Not DdlPSAjuste.SelectedValue.ToEntero > 0 AndAlso DdlFacturas.SelectedValue.ToEntero > 0 Then
             TxtPUFactura.Text = ""
         End If
-
-        CalculaPorcentajeAjuste()
+        If DdlPSAjuste.SelectedValue.ToEntero() > 0 Then
+            CalculaPorcentajeAjuste()
+        End If
     End Sub
 
     Protected Sub DdlTipoUso_SelectedIndexChanged(sender As Object, e As EventArgs)
@@ -6021,6 +6027,9 @@ Partial Class PV
             Alert("No se ha especificado producto de ajuste a entregar")
             Exit Sub
         End If
+        If Not CalculaMesesUso() Then
+            Exit Sub
+        End If
         Try
             TxtImporteAjuste.Text = "0.00"
             If DdlTipoUso.SelectedValue.ToEntero > 0 AndAlso DdlPSAjuste.SelectedValue.ToEntero > 0 AndAlso TxtMesesUso.Text <> "" AndAlso DdlPS.SelectedValue.ToEntero > 0 Then
@@ -6282,12 +6291,13 @@ Partial Class PV
         Dim Retorno As Boolean = True
 
         If Modalidad = "U" Then
-            If TmpDTRecepcionUsados.Rows.Count > 0 Then
+            If TmpDTPolizaVirtual.Rows.Count > 0 Then
                 Dim Elimino As Boolean = False
                 For Each RowPoliza As DataRow In TmpDTPolizaVirtual.Rows
                     If RowPoliza("CvePS").ToString().ToEntero() = CvePS Then
                         RowPoliza.Delete()
                         Elimino = True
+                        Exit For
                     End If
                 Next
                 If Elimino Then