diff --git a/Customers/Customers.master b/Customers/Customers.master
index 4086877..4ead25c 100644
--- a/Customers/Customers.master
+++ b/Customers/Customers.master
@@ -145,7 +145,7 @@
         
     </asp:ContentPlaceHolder>
 </head>
-<body data-spy="scroll" data-target=".navbar" data-offset="50">                                   
+<body data-spy="scroll" data-target=".navbar" data-offset="50" onbeforeunload=" return 'Are you really want to perform the action?'">                                   
                         <!-- <div id="nav-main">
                         <div id="art-logo"></div>
                         </div>        
diff --git a/Customers/Customers.master.vb b/Customers/Customers.master.vb
index 9b0491c..84e29ec 100644
--- a/Customers/Customers.master.vb
+++ b/Customers/Customers.master.vb
@@ -1,7 +1,17 @@
 ﻿
 Partial Class Customers_Customers
     Inherits System.Web.UI.MasterPage
+    Protected isPageRefresh As Boolean = False
+    Protected Sub Page_Load(ByRef sender As Object, ByVal e As EventArgs)
+        If (Session.Item("CheckRefresh") = True) Then
+            Session.Item("CheckRefresh") = Nothing
+            Response.Write("Page was refreshed!")
+        End If
+    End Sub
 
+    Protected Sub Page_PreInit(ByRef sender As Object, ByVal e As EventArgs)
+        Session.Add("CheckRefresh", False)
+    End Sub
 
     Protected Sub LogoutButton1_Click(sender As Object, e As EventArgs)
         Page.MaintainScrollPositionOnPostBack = True
diff --git a/Customers/CustomsAviso.aspx b/Customers/CustomsAviso.aspx
index d804d0f..a84138b 100644
--- a/Customers/CustomsAviso.aspx
+++ b/Customers/CustomsAviso.aspx
@@ -74,28 +74,30 @@
                                 <div class="col-12" style="margin-left:8px">
                                         <asp:Label ID="lbl_ArtderAuftraege" runat="server" Text="Auftrags-Status:" data-bs-toggle="tooltip" data-bs-placement="top" title="Wenn nichts angewählt ist, bitte das Datum eingrenzen."></asp:Label> 
                                 </div>                                   
-                                <div class="d-none d-md-block">                                  
+                                <div class="d-none d-md-block">      
+                                    <%Dim ismobile As Boolean = False %>
                                 <div  style=" width:780px; margin-left:8px">            
                                       <fieldset>
                                         <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>                                       
-                                        <label style="margin-right:4px;"><input id="rbt_Alle" onchange="changeval(this.value)" type="radio" name="art" value="Alle" aria-selected="true" data-bs-toggle="tooltip" style="margin-right:4px" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." runat="server"/>Alle</label>
-                                        <label style="margin-right:4px;"><input id="rbt_Erf" onchange="changeval(this.value)" type="radio" name="art" value="Erfasst" style="margin-right:4px" runat="server"/>Erfasst</label>
-                                        <label style="margin-right:4px;"><input id="rbt_Vorb" onchange="changeval(this.value)" type="radio" name="art" value="Vorbereitet" style="margin-right:4px" runat="server"/>Vorbereitet</label>
-                                        <label style="margin-right:4px;"><input id="rbt_Vorg" onchange="changeval(this.value)" type="radio" name="art" value="Vorgeschrieben"  style="margin-right:4px" runat="server"/>Vorgeschrieben</label>
-                                        <label style="margin-right:4px;"><input id="rbt_Ankunft" onchange="changeval(this.value)" type="radio" name="art" value="Ankunft" style="margin-right:4px" runat="server"/>Ankunft</label>
-                                        <label style="margin-right:4px;"><input id="rbt_Freig" onchange="changeval(this.value)" type="radio" name="art" value="Freigabe" data-bs-toggle="tooltip" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." style="margin-right:4px" runat="server">Freigabe</label>                                                                         
+                                        <label style="margin-right:4px;"><input id="rbt_Alle" onclick="auswahl(this.id)" type="radio" name="art" value="Alle" checked="true" data-bs-toggle="tooltip" style="margin-right:4px" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." runat="server"/>Alle</label>
+                                        <label style="margin-right:4px;"><input id="rbt_Erf" onclick="auswahl(this.id)" type="radio" name="art" value="Erfasst" style="margin-right:4px" runat="server"/>Erfasst</label>
+                                        <label style="margin-right:4px;"><input id="rbt_Vorb" onclick="auswahl(this.id)" type="radio" name="art" value="Vorbereitet" style="margin-right:4px" runat="server"/>Vorbereitet</label>
+                                        <label style="margin-right:4px;"><input id="rbt_Vorg" onclick="auswahl(this.id)" type="radio" name="art" value="Vorgeschrieben"  style="margin-right:4px" runat="server"/>Vorgeschrieben</label>
+                                        <label style="margin-right:4px;"><input id="rbt_Ankunft" onclick="auswahl(this.id)" type="radio" name="art" value="Ankunft" style="margin-right:4px" runat="server"/>Ankunft</label>
+                                        <label style="margin-right:4px;"><input id="rbt_Freig" onclick="auswahl(this.id)" type="radio" name="art" value="Freigabe" data-bs-toggle="tooltip" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." style="margin-right:4px" runat="server">Freigabe</label>                                                                         
                                      </fieldset>                                                                    
                                  </div>                                    
                                   </div>
                                    <div class="d-md-none"> 
+                                       <%ismobile = True %>
                                        <div class="col-8" style="margin-left:8px">
                                         <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>                                        
-                                        <label><input id="rbt_Alle_M" type="radio" name="art2" onchange="changeval(this.value)" value="Alle" data-bs-toggle="tooltip" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." class="CSS_input" runat="server"/>Alle</label>
-                                        <label style="margin-right:144px;"><input id="rbt_Erf_M" onchange="changeval(this.value)"  value="Erfasst" type="radio" name="art2" style="margin-right:4px" runat="server"/>Erfasst</label>
-                                        <label><input id="rbt_Vorb_M" type="radio" name="art2" onchange="changeval(this.value)" value="Vorbereitet" style="margin-right:4px" runat="server"/>Vorbereitet</label>
-                                        <label><input id="rbt_Vorg_M" type="radio" name="art2" onchange="changeval(this.value)" value="Vorgeschrieben" style="margin-right:4px" runat="server"/>Vorgeschrieben</label>
-                                        <label style="margin-right:22px"><input id="rbt_Ankunft_M" onchange="changeval(this.value)" type="radio" name="art2" value="Ankunft" style="margin-right:4px" runat="server"/>Ankunft</label>
-                                        <label style="margin-right:52px"><input id="rbt_Freig_M" onchange="changeval(this.value)" type="radio" name="art2" value="Freigabe" data-bs-toggle="tooltip" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." style="margin-right:4px" runat="server">Freigabe</label>                                                                              
+                                        <label><input id="rbt_Alle_M" type="radio" name="art2" onclick="auswahl(this.id)" value="Alle" data-bs-toggle="tooltip" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." class="CSS_input" runat="server"/>Alle</label>
+                                        <label style="margin-right:144px;"><input id="rbt_Erf_M" onclick="auswahl(this.id)" value="Erfasst" type="radio" name="art2" style="margin-right:4px" runat="server"/>Erfasst</label>
+                                        <label><input id="rbt_Vorb_M" type="radio" name="art2" onclick="auswahl(this.id)" value="Vorbereitet" style="margin-right:4px" runat="server"/>Vorbereitet</label>
+                                        <label><input id="rbt_Vorg_M" type="radio" name="art2" onclick="auswahl(this.id)" value="Vorgeschrieben" style="margin-right:4px" runat="server"/>Vorgeschrieben</label>
+                                        <label style="margin-right:22px"><input id="rbt_Ankunft_M" onclick="auswahl(this.id)" type="radio" name="art2" value="Ankunft" style="margin-right:4px" runat="server"/>Ankunft</label>
+                                        <label style="margin-right:52px"><input id="rbt_Freig_M" onclick="auswahl(this.id)" type="radio" name="art2" value="Freigabe" data-bs-toggle="tooltip" data-bs-placement="top" title="Wenn dieser Filter angewählt ist, bitte das Datum eingrenzen." style="margin-right:4px" runat="server">Freigabe</label>                                                                              
                                        </div>                                  
                                   </div> 
                                 </div>
@@ -231,44 +233,98 @@
    
     <script src="https://cdn.jsdelivr.net/jquery.validation/1.16.0/jquery.validate.min.js"></script>
     <script src="https://cdn.jsdelivr.net/jquery.validation/1.16.0/additional-methods.min.js"></script>
-    <script>
-        $(document).ready(function () {
-            $('[input:radio]').change(function () {
-                if (this.checked)
-                    $('#container2').fadeIn('slow');
-                else
-                    $('#container2').fadeOut('slow');
-
-            });
-        });
-    </script>
-    <script>
-        function changeval(value) {
-            /var hidden = $('#HIDf2').val()
-            if ($('<%=rbt_Alle.ClientID%>').is(":checked")) {
-                $("#container2").hide();
-            }
-
-            if (value == "Alle"){                
-                date1.required = true;
-                date2.required = true;                
-                $("#container2").show();                
-                $('#HIDf2').val('0')
-            } else if (value == "Freigabe") {
-                date1.required = true;
-                date2.required = true;
+    <script>            
+        function auswahl(id) {
+           /* alert(id)*/
+            if (id == "ContentPlaceHolder1_rbt_Alle_M") {
+                /*alert("testalle")*/
+                var myVal1 = document.getElementById("ContentPlaceHolder1_valreqpickdate1");
+                ValidatorEnable(myVal1, true);
+                var myVal2 = document.getElementById("ContentPlaceHolder1_valreqpickdate2");
+                ValidatorEnable(myVal2, true);
                 $("#container2").show();
-                $('#HIDf2').val('0')
-            } else {
-                date1.required = false;
-                date2.required = false;
-                date1.text() = null;
-                date2.text() = null;
+            } else if (id == "ContentPlaceHolder1_rbt_Freig_M") {
+                /*alert("testfreig")*/
+                var myVal1 = document.getElementById('ContentPlaceHolder1_valreqpickdate1');
+                ValidatorEnable(myVal1, true);
+                var myVal2 = document.getElementById('ContentPlaceHolder1_valreqpickdate2');
+                ValidatorEnable(myVal2, true);
+                $("#container2").show();
+            } else if (id == "ContentPlaceHolder1_rbt_Ankunft_M") {
+                /*alert("testAnk")*/
+                var myVal1 = document.getElementById("ContentPlaceHolder1_valreqpickdate1");
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById("ContentPlaceHolder1_valreqpickdate2");
+                ValidatorEnable(myVal2, false);
+                ValidatorEnable(myVal2, false);
                 $("#container2").hide();
-                $('#HIDf2').val('1')  
-            }
-        }
+            } else if (id == "ContentPlaceHolder1_rbt_Vorb_M") {
+                /*alert("tesvorb")*/
+                var myVal1 = document.getElementById("ContentPlaceHolder1_valreqpickdate1");
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById("ContentPlaceHolder1_valreqpickdate2");
+                ValidatorEnable(myVal2, false);
+                $("#container2").hide();
+            } else if (id == "ContentPlaceHolder1_rbt_Vorg_M") {
+                /*alert("testvorg")*/
+                var myVal1 = document.getElementById("ContentPlaceHolder1_valreqpickdate1");
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById("ContentPlaceHolder1_valreqpickdate2");
+                ValidatorEnable(myVal2, false);
+                $("#container2").hide();
+            } else if (id == "ContentPlaceHolder1_rbt_Erf_M") {
+                /*alert("testerf")*/
+                var myVal1 = document.getElementById("ContentPlaceHolder1_valreqpickdate1");
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById("ContentPlaceHolder1_valreqpickdate2");
+                ValidatorEnable(myVal2, false);
+                $("#container2").hide();
+            } else if (id == "ContentPlaceHolder1_rbt_Alle") {
+                /*alert("testalle")*/
+                var myVal1 = document.getElementById('ContentPlaceHolder1_valreqpickdate1');
+                ValidatorEnable(myVal1, true);
+                var myVal2 = document.getElementById('ContentPlaceHolder1_valreqpickdate2');
+                ValidatorEnable(myVal2, true);
+                $("#container2").show();
+            } else if (id == "ContentPlaceHolder1_rbt_Freig") {
+                /*alert("testfreig")*/
+                var myVal1 = document.getElementById('ContentPlaceHolder1_valreqpickdate1');
+                ValidatorEnable(myVal1, true);
+                var myVal2 = document.getElementById('ContentPlaceHolder1_valreqpickdate2');
+                ValidatorEnable(myVal2, true);
+                $("#container2").show();
+            } else if (id == "ContentPlaceHolder1_rbt_Ankunft") {
+                /*alert("testAnk")*/
+                var myVal1 = document.getElementById('ContentPlaceHolder1_valreqpickdate1');
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById('ContentPlaceHolder1_valreqpickdate2');
+                ValidatorEnable(myVal2, false);
+                $("#container2").hide();
+            } else if (id == "ContentPlaceHolder1_rbt_Vorb") {
+                /*alert("tesvorb")*/
+                var myVal1 = document.getElementById('ContentPlaceHolder1_valreqpickdate1');
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById('ContentPlaceHolder1_valreqpickdate2');
+                ValidatorEnable(myVal2, false);
+                $("#container2").hide();
+            } else if (id == "ContentPlaceHolder1_rbt_Vorg") {
+                /*alert("tesvorg")*/
+                var myVal1 = document.getElementById('ContentPlaceHolder1_valreqpickdate1');
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById('ContentPlaceHolder1_valreqpickdate2');
+                ValidatorEnable(myVal2, false);
+                $("#container2").hide();
+            } else if (id == "ContentPlaceHolder1_rbt_Erf") {
+                /*alert("testerf")*/
+                var myVal1 = document.getElementById('ContentPlaceHolder1_valreqpickdate1');
+                ValidatorEnable(myVal1, false);
+                var myVal2 = document.getElementById('ContentPlaceHolder1_valreqpickdate2');
+                ValidatorEnable(myVal2, false);
+                $("#container2").hide();
+            }                             
+        }        
     </script>
+   
   <script>
       $(function () {
           Sys.WebForms.PageRequestManager.getInstance().add_endRequest(PostBack);
@@ -325,4 +381,5 @@
            }
        });
      </script>    
+    
 </asp:Content>
\ No newline at end of file
diff --git a/Customers/CustomsAviso.aspx.vb b/Customers/CustomsAviso.aspx.vb
index d3c6328..812d6be 100644
--- a/Customers/CustomsAviso.aspx.vb
+++ b/Customers/CustomsAviso.aspx.vb
@@ -32,35 +32,6 @@ Partial Class CustomsAviso
                 Page.MaintainScrollPositionOnPostBack = True
                 normaltable.EnableViewState = True
 
-                Select Case Session.Item("IDOFCKBOX")
-                    Case 1
-                        rbt_Alle.Checked = True
-                    Case 2
-                        rbt_Erf.Checked = True
-                    Case 3
-                        rbt_Freig.Checked = True
-                    Case 4
-                        rbt_Ankunft.Checked = True
-                    Case 5
-                        rbt_Vorb.Checked = True
-                    Case 6
-                        rbt_Vorg.Checked = True
-                    Case 7
-                        rbt_Alle_M.Checked = True
-                    Case 8
-                        rbt_Erf_M.Checked = True
-                    Case 9
-                        rbt_Freig_M.Checked = True
-                    Case 10
-                        rbt_Ankunft_M.Checked = True
-                    Case 11
-                        rbt_Vorb_M.Checked = True
-                    Case 12
-                        rbt_Vorg_M.Checked = True
-                    Case -1
-                        rbt_Alle.Checked = True
-                End Select
-
                 If rbt_Alle.Checked = True Then
                     lbl_von.Visible = True
                     lbl_bis.Visible = True
@@ -426,7 +397,6 @@ Partial Class CustomsAviso
 
         ElseIf rbt_Freig.Checked = True Then
             ckd = 3
-            Session.Add("IDOFCKBOX", ckd.ToString)
             pickdate1.ValidateRequestMode = UI.ValidateRequestMode.Enabled
             pickdate2.ValidateRequestMode = UI.ValidateRequestMode.Enabled
             If pickdate1.Text = Nothing Or pickdate2.Text = Nothing Then
@@ -451,22 +421,19 @@ Partial Class CustomsAviso
             End If
         ElseIf rbt_Ankunft.Checked = True Then
             ckd = 4
-            Session.Add("IDOFCKBOX", ckd.ToString)
             dt = VERAG_PROG_ALLGEMEIN.cAviso.GET_KDLIST_WEB(Art, Kdnrtext, {3}, Nothing, Nothing, Absender, Empfaenger, LKWNR, KDNAFNR)
         ElseIf rbt_Vorb.Checked = True Then
             ckd = 5
-            Session.Add("IDOFCKBOX", ckd.ToString)
             dt = VERAG_PROG_ALLGEMEIN.cAviso.GET_KDLIST_WEB(Art, Kdnrtext, {4}, Nothing, Nothing, Absender, Empfaenger, LKWNR, KDNAFNR)
         ElseIf rbt_Vorg.Checked = True Then
             ckd = 6
-            Session.Add("IDOFCKBOX", ckd.ToString)
+
             dt = VERAG_PROG_ALLGEMEIN.cAviso.GET_KDLIST_WEB(Art, Kdnrtext, {5}, Nothing, Nothing, Absender, Empfaenger, LKWNR, KDNAFNR)
         End If
         If rbt_Alle_M.Checked = True Then
             pickdate1.ValidateRequestMode = UI.ValidateRequestMode.Enabled
             pickdate2.ValidateRequestMode = UI.ValidateRequestMode.Enabled
             ckd = 7
-            Session.Add("IDOFCKBOX", ckd.ToString)
             If pickdate1.Text = Nothing Or pickdate2.Text = Nothing Then
                 Try
                     Dim erster = New Date(Now().Year, Now().Month, 1)
@@ -491,7 +458,6 @@ Partial Class CustomsAviso
             End If
         ElseIf rbt_Erf_M.Checked = True Then
             ckd = 8
-            Session.Add("IDOFCKBOX", ckd.ToString)
             dt = VERAG_PROG_ALLGEMEIN.cAviso.GET_KDLIST_WEB(Art, Kdnrtext, {0}, Nothing, Nothing, Absender, Empfaenger, LKWNR, KDNAFNR)
         ElseIf rbt_Freig_M.Checked = True Then
             ckd = 9
@@ -520,17 +486,14 @@ Partial Class CustomsAviso
             End If
         ElseIf rbt_Ankunft_M.Checked = True Then
             ckd = 10
-            Session.Add("IDOFCKBOX", ckd.ToString)
             pickdate1.Visible = False
             pickdate2.Visible = False
             dt = VERAG_PROG_ALLGEMEIN.cAviso.GET_KDLIST_WEB(Art, Kdnrtext, {3}, Nothing, Nothing, Absender, Empfaenger, LKWNR, KDNAFNR)
         ElseIf rbt_Vorb_M.Checked = True Then
             ckd = 11
-            Session.Add("IDOFCKBOX", ckd.ToString)
             dt = VERAG_PROG_ALLGEMEIN.cAviso.GET_KDLIST_WEB(Art, Kdnrtext, {4}, Nothing, Nothing, Absender, Empfaenger, LKWNR, KDNAFNR)
         ElseIf rbt_Vorg_M.Checked = True Then
             ckd = 12
-            Session.Add("IDOFCKBOX", ckd.ToString)
             dt = VERAG_PROG_ALLGEMEIN.cAviso.GET_KDLIST_WEB(Art, Kdnrtext, {5}, Nothing, Nothing, Absender, Empfaenger, LKWNR, KDNAFNR)
         End If
 
@@ -735,4 +698,5 @@ Partial Class CustomsAviso
     Protected Sub txt_KdNrAuftrag_M_TextChanged(sender As Object, e As EventArgs)
         regval_txt_KdNrAuftrag_M.Validate()
     End Sub
-End Class
\ No newline at end of file
+End Class
+
