diff --git a/C-TRACK/doExport.aspx.cs b/C-TRACK/doExport.aspx.cs
index 8be7ece..ced6d84 100644
--- a/C-TRACK/doExport.aspx.cs
+++ b/C-TRACK/doExport.aspx.cs
@@ -1,12 +1,7 @@
 using AppData;
 using System;
-using System.Collections.Generic;
 using System.Data;
-using System.Linq;
 using System.Text;
-using System.Web;
-using System.Web.UI;
-using System.Web.UI.WebControls;
 
 namespace C_TRACK
 {
@@ -24,8 +19,23 @@ namespace C_TRACK
       string value = "";
       StringBuilder builder = new StringBuilder();
 
-      // recupero oggetti parametrici...
-      var dt = dataLayer.man.taTR.getByFilt("", DateTime.Today.AddMonths(-3), DateTime.Today.AddDays(1));
+      // recupero oggetti parametrici...        
+      string from = Request.QueryString["from"];
+      string to = Request.QueryString["to"];
+      DateTime dateFrom = DateTime.Today.AddYears(-1);
+      DateTime dateTo = DateTime.Today.AddDays(1);
+      // se è diverso da vuoto faccio parse...
+      if (from != "" && from !=null)
+      {
+        DateTime.TryParse(from, out dateFrom);
+      }
+      if (to != "" && to != null)
+      {
+        DateTime.TryParse(to, out dateTo);
+      }
+
+      // leggo tabella
+      var dt = dataLayer.man.taTR.getByFilt("", dateFrom, dateTo);
 
       //write the csv column headers
       for (int i = 0; i < dt.Columns.Count; i++)
diff --git a/Jenkinsfile b/Jenkinsfile
index b4f8496..f652777 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -20,7 +20,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=85']) {
+        withEnv(['NEXT_BUILD_NUMBER=88']) {
           // env.versionNumber = VersionNumber(versionNumberString : '1.1.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2018-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '1.1.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2018-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
             env.APP_NAME = 'C.TRACK'