CxC Pop de pago no se mostraba correctamente

Ventas/Clientes.aspx

@@ -2078,6 +2078,11 @@
                                                     <AlternatingRowStyle CssClass="TextoAlterno" />
                                                     <HeaderStyle CssClass="Titulos" />
                                                 </asp:GridView>
+
+
+
+                                                 
+
                                             </div>
                                         </div>
                                     </div>
@@ -6569,6 +6574,11 @@
                 $("#C_Tab_TabContratos_tab").click(function () { CargaContratos(); });
             }
 
+            var isAsyncPostback = Sys.WebForms.PageRequestManager.getInstance().get_isInAsyncPostBack();
+            if (isAsyncPostback) {
+                tb_init('a.thickbox');
+            }
+
         }
         $(document).on('mouseenter', ".truncate", function () {
             var $this = $(this);
@@ -7293,6 +7303,13 @@
             $get("BtnCambiaPorcentaje").click();
         }
 
+
+
+
+  
+
+       
+
     </script>
     <script src="<%= String.Format("https://maps.googleapis.com/maps/api/js?key={0}&libraries=drawing&libraries=places", Extensiones.GOOGLE_MAPS_API_KEY) %>"></script>