diff --git a/add.php b/add.php
index 8bfd91740..829776d82 100644
--- a/add.php
+++ b/add.php
@@ -38,54 +38,33 @@ if (isAjaxRequest()) {
     echo '
 <script>
 $(document).ready(function(){
-	$("#form_'.$id_module.'-'.$id_plugin.'").find("form").on("submit", function(){
-		if($(this).parsley().validate()){
-			var form_data = new FormData();';
+    data = {};';
 
     foreach ($get as $key => $value) {
         echo '
-			form_data.append("'.$key.'", "'.$value.'");';
+    data.'.$key.' = "'.$value.'";';
     }
 
     echo '
 
-			$(this).find("input, textarea, select").each(function(){
-                var name = $(this).attr("name");
+    $("#form_'.$id_module.'-'.$id_plugin.'").find("form").ajaxForm({
+        url: "'.$rootdir.$directory.'/actions.php",
+        data: data,
+        type: "post",
+        success: function(data){
+            data = data.trim();
 
-                var data = $(this).val();
-                data = (typeof data == "string") ? [data] : data;
+            if(data && !$("#'.$get['select'].'").val()) {
+                result = JSON.parse(data);
+                $("#'.$get['select'].'").selectSetNew(result.id, result.text);
+            }
 
-                data.forEach(function(item){
-                    form_data.append(name, item);
-                });
-			});
-
-			$.ajax({
-				url: "'.$rootdir.$directory.'/actions.php",
-				cache: false,
-				type: "post",
-				processData: false,
-				contentType: false,
-				dataType : "html",
-				data: form_data,
-				success: function(data) {
-					data = data.trim();
-
-                    if(data && !$("#'.$get['select'].'").val()) {
-                        result = JSON.parse(data);
-                        $("#'.$get['select'].'").append(\'<option value="\' + result.id +\'">\' + result.text + \'</option>\').val(result.id).trigger("change");
-					}
-
-					$("#bs-popup2").modal("hide");
-				},
-				error: function() {
-					alert("'.tr('Errore').': " + form_data);
-				}
-			});
-		}
-
-		return false;
-	});
+            $("#bs-popup2").modal("hide");
+        },
+        error: function(data) {
+            alert("'.tr('Errore').': " + data);
+        }
+    });
 });
 </script>';
 }
diff --git a/include/configuration.php b/include/configuration.php
index b4e99da8f..5dfa575b1 100644
--- a/include/configuration.php
+++ b/include/configuration.php
@@ -224,39 +224,25 @@ if (empty($creation) && (!file_exists('config.inc.php') || !$valid_config)) {
 
             $("#test").on("click", function(){
                 if($(this).closest("form").parsley().validate()){
-                    var form_data = new FormData();
-
-                    $(this).closest("form").find("input, textarea, select").each(function(){
-                        var name = $(this).attr("name");
-
-                        var data = $(this).val();
-                        data = (typeof data == "string") ? [data] : data;
-
-                        data.forEach(function(item){
-                            form_data.append(name, item);
-                        });
-                    });
-
-                    form_data.append("test", 1);
-
-                    $.ajax({
+                    $(this).closest("form").ajaxSubmit({
                         url: "'.$rootdir.'/index.php",
-                        cache: false,
+                        data: {
+                            test: 1,
+                        },
                         type: "post",
-                        processData: false,
-                        contentType: false,
-                        dataType : "html",
-                        data: form_data,
-                        success: function(data) {
+                        success: function(data){
                             data = parseFloat(data.trim());
 
                             if(data == 0){
-                                swal("'.tr('Errore della configurazione').'", "'.tr('La configurazione non è corretta.').'", "error");
+                                swal("'.tr('Errore della configurazione').'", "'.tr('La configurazione non è corretta').'.", "error");
                             } else if(data == 1){
-                                swal("'.tr('Permessi insufficienti').'", "'.tr("L'utente non possiede permessi sufficienti per il corretto funzionamento del software.").'", "error");
-                            } else{
-                                swal("'.tr('Configurazione corretta').'", "'.tr("Ti sei connesso con successo al database. Clicca su 'Prosegui' per installare.").'", "success");
+                                swal("'.tr('Permessi insufficienti').'", "'.tr("L'utente non possiede permessi sufficienti per il corretto funzionamento del software").'.", "error");
+                            } else {
+                                swal("'.tr('Configurazione corretta').'", "'.tr('Ti sei connesso con successo al database').'. '.tr("Clicca su 'Installa' per proseguire").'.", "success");
                             }
+                        },
+                        error: function(data) {
+                            alert("'.tr('Errore').': " + data);
                         }
                     });
                 }
diff --git a/lib/functions.js b/lib/functions.js
index 94a32cad4..8374c4868 100644
--- a/lib/functions.js
+++ b/lib/functions.js
@@ -1239,6 +1239,12 @@ function redirect(href, data, method, blank) {
 
         form.submit();
     } else {
-        window.open(href + (href.indexOf('?') !== -1 ? '&' : '?') + text.join('&') + window.location.hash, blank ? "_blank" : "_self")
+        var link = href + (href.indexOf('?') !== -1 ? '&' : '?') + text.join('&') + window.location.hash;
+
+        if (blank) {
+            window.open(link);
+        } else {
+            location.href = link;
+        }
     }
 }
diff --git a/modules/interventi/add_articolo.php b/modules/interventi/add_articolo.php
index d478ed3b7..4e2d289dd 100644
--- a/modules/interventi/add_articolo.php
+++ b/modules/interventi/add_articolo.php
@@ -194,16 +194,13 @@ echo '
 <script type="text/javascript">
     $(document).ready(function() {
         $('#add_form').ajaxForm({
-            beforeSubmit: function(){
-                return ($('#idarticolo').val() && $('#qta').val() && $('#qta').val());
-            },
-
             success: function(){
                 $('#bs-popup').modal('hide');
 
-                // ricarico la pagina ajax_referente
+                // Ricarico gli articoli
                 $('#articoli').load(globals.rootdir + '/modules/interventi/ajax_articoli.php?id_module=<?php echo $id_module ?>&id_record=<?php echo $id_record ?>');
 
+                // Ricarico la tabella dei costi
                 $('#costi').load(globals.rootdir + '/modules/interventi/ajax_costi.php?id_module=<?php echo $id_module ?>&id_record=<?php echo $id_record ?>');
             }
         });
diff --git a/modules/interventi/add_righe.php b/modules/interventi/add_righe.php
index 3e58ddc41..f3e217e34 100644
--- a/modules/interventi/add_righe.php
+++ b/modules/interventi/add_righe.php
@@ -109,21 +109,16 @@ echo '
 
 <script type="text/javascript">
     $(document).ready(function() {
-        var options = {
-            beforeSubmit:	function(){
-                        return ( $('#descrizione_riga').val() != '' && $('#qta').val() != '' && $('#prezzo_vendita').val() != '' );
-                        },
+        $('#add-righe').ajaxForm({
+            success: function(){
+                $('#bs-popup').modal('hide');
 
-            success:	function(){
-                        $('#bs-popup').modal('hide');
+                // Ricarico le righe
+                $('#righe').load(globals.rootdir + '/modules/interventi/ajax_righe.php?id_module=<?php echo $id_module ?>&id_record=<?php echo $id_record ?>');
 
-                        // ricarico la pagina ajax_referente
-                        $('#righe').load(globals.rootdir + '/modules/interventi/ajax_righe.php?id_module=<?php echo $id_module ?>&id_record=<?php echo $id_record ?>');
-
-                        $('#costi').load(globals.rootdir + '/modules/interventi/ajax_costi.php?id_module=<?php echo $id_module ?>&id_record=<?php echo $id_record ?>');
-                    }
-        }
-
-        $('#add-righe').ajaxForm( options );
+                // Ricarico la tabella dei costi
+                $('#costi').load(globals.rootdir + '/modules/interventi/ajax_costi.php?id_module=<?php echo $id_module ?>&id_record=<?php echo $id_record ?>');
+            }
+        });
     });
 </script>
diff --git a/package.json b/package.json
index a7bb3317e..8c263252e 100644
--- a/package.json
+++ b/package.json
@@ -44,11 +44,9 @@
         "eonasdan-bootstrap-datetimepicker": "^4.17.47",
         "font-awesome": "^4.7.0",
         "fullcalendar": "^3.4.0",
-        "html5shiv": "^3.7.3",
         "inputmask": "^3.3.6",
         "jquery": "^3.2.1",
         "jquery-form": "^4.2.1",
-        "jquery-slimscroll": "^1.3.8",
         "jquery-ui-touch-punch": "^0.2.3",
         "moment": "^2.18.1",
         "parsleyjs": "^2.7.2",
@@ -161,9 +159,6 @@
         "inputmask": {
             "main": "dist/min/jquery.inputmask.bundle.min.js"
         },
-        "jquery-slimscroll": {
-            "main": "jquery.slimscroll.js"
-        },
         "parsleyjs": {
             "main": [
                 "dist/parsley.js",
@@ -183,8 +178,6 @@
             "main": [
                 "dist/css/smart_wizard.min.css",
                 "dist/css/smart_wizard_theme_arrows.min.css",
-                "dist/css/smart_wizard_theme_circles.min.css",
-                "dist/css/smart_wizard_theme_dots.min.css",
                 "dist/js/jquery.smartWizard.min.js"
             ]
         },