diff --git a/preferences/preferences.js b/preferences/preferences.js
index c6aa6fd..9d6b1cf 100644
--- a/preferences/preferences.js
+++ b/preferences/preferences.js
@@ -1,8 +1,103 @@
+document.addEventListener('DOMContentLoaded', function(){
+    displaySettings();
+    addListeners();
+    getSettings();
+});
+
+function displaySettings(){
+    var tableSettings = document.getElementById("settings");
+    var tableBody = tableSettings.getElementsByTagName("tbody");
+    var newElement = "";
+
+    settings.forEach( function( setting ){
+        var type = "";
+
+        newElement += "<tr id='setting_"+setting.id+"' data-type='"+setting.type+"' class='setting'><td>"+setting.name+"</td><td>";
+
+        switch ( setting.type ){
+            case "checkbox":
+
+                newElement += "<input id='checkbox_"+setting.id+"' type='"+setting.type+"'>";
+
+            break;            
+
+            case "radio":
+                setting.options.forEach( function( option ){
+                    newElement += "<input type='"+setting.type+"' name='radio_"+setting.id+"' id='radio_"+setting.id+"_"+option+"' value='"+option+"'>";
+                    newElement += "<label for='radio_"+setting.id+"_"+option+"' >"+option+"</label>";
+
+                });
+
+            break;            
+
+            case "range":
+                    newElement += "<input type='"+setting.type+"' class='rangeSelector' id='range_"+setting.id+"' min='"+setting.options.min+"' max='"+setting.options.max+"' >";
+                    newElement += "<label for='range_"+setting.id+"' id='range_value_"+setting.id+"' ></label>";
+            break;
+
+            case "text":
+                    newElement += "<input type='"+setting.type+"'>";
+
+            break;
+
+            case "dropdown":
+                    newElement += "<select>";
+                    setting.options.forEach( function( option ){
+                        newElement += "<option value='"+option.replace(" ", "_")+"'>"+option+"</option>";
+                    });
+                    newElement += "</select>";
+            break;
+        }
+
+
+        newElement = newElement + "</td><tr>";
+        
+    });
+    
+    tableBody.innerHTML = newElement;
+    tableSettings.innerHTML = tableBody.innerHTML;
+    
+}
+// function loadSettings(){
+//     var settingsList = document.getElementsByClassName("setting");
+//     for (var i = settingsList.length - 1; i >= 0; i--) {
+//         var settingId = String( settingsList[i].id.split("_")[1] );
+//         getSetting();
+//     };
+// }
+
+function addListeners(){
+    var settingsElement = document.getElementsByClassName("setting");
+
+    for (var i = settingsElement.length - 1; i >= 0; i--) {
+        settingsElement[i].addEventListener('change', saveSettings);
+    }
+
+    var rangeElements = document.getElementsByClassName("rangeSelector");
+
+    for (var i = rangeElements.length - 1; i >= 0; i--) {
+        rangeElements[i].addEventListener('change', updateRangeValueLabel);
+    };
+}
+
 //saves the data into storage
 function saveSettings(){
     var setting = this.id;
     setting = setting.split("_")[1];
-    var value = this.childNodes[1].childNodes[0].checked;
+    var type = this.getAttribute('data-type');
+    switch (type){
+        case "checkbox":
+            var value = this.childNodes[1].childNodes[0].checked;
+        break;
+        case "radio":
+            var value = document.querySelector('input[name = "radio_'+setting+'"]:checked').value;
+        break;
+        case "text":
+        case "range":
+        case "dropdown":
+            var value = this.childNodes[1].childNodes[0].value;
+        break;
+    }
 
     var obj = {};
     obj[setting] = value;
@@ -17,36 +112,59 @@ function saveSettings(){
 }
 
 //get the value stored in the storage and will be shown in the text box.
-function getSetting( settingId ){
-    chrome.storage.sync.get( settingId ,function(obj){
+function getSettings( ){
+  
+    chrome.storage.sync.get( null ,function(obj){
 
-         document.getElementById( "setting_" + settingId ).childNodes[1].childNodes[0].checked = obj[settingId];
-         // console.dir( obj[settingId]);
+        updateSettings(obj);
+       
     });   
 }
 
-//calling the getSetting() function to show the saved message when opening from 2nd time.
-document.addEventListener('DOMContentLoaded', function(){
-    loadSettings();
-    addListener();
-
-});
-//binding change event to text box to call function to save data
-function addListener(){
-    var settingsElement = document.getElementsByClassName("setting");
+function updateSettings( storedSettings ){
+    for( var settingId in storedSettings ){
+        settingId = String( settingId );
+        settingObject = document.getElementById( "setting_"+settingId );
+        type = settingObject.getAttribute('data-type');
 
-    for( var i = 0 ; i < settingsElement.length; i++){
-        settingsElement[i].addEventListener('change', saveSettings);
+        switch( type ){
+            case ( "checkbox" ):
+                settingObject.childNodes[1].childNodes[0].checked = storedSettings[settingId];
+            break;
+            case ( "radio" ):
+                document.getElementById( "radio_"+ settingId +"_"+ storedSettings[settingId] ).checked = true;
+            break;
+            case "range":
+                settingObject.childNodes[1].childNodes[0].value = storedSettings[settingId];
+                updateRangeValueLabel( settingId , storedSettings[settingId] );
+            break;
 
+            case "text":
+            case "dropdown":
+                settingObject.childNodes[1].childNodes[0].value = storedSettings[settingId];
+            break;
+        }
     }
-
     
 }
 
+function updateRangeValueLabel( labelIdNumber, value ){
+    // console.log(this.value);
+    if( typeof labelIdNumber === "undefined" ){
+        var labelIdNumber = this.id.split("_")[1];
+    }
+    if( value ){
+        this.value = value;
+    }
+    var label = document.getElementById("range_value_"+labelIdNumber);
+    label.innerHTML = this.value;
+}
+
+
 var settings = [
     {
         id: "1",
-        name: "Message",
+        name: "Message 1",
         type: "checkbox"
     }, {
         id: "2",
@@ -55,19 +173,25 @@ var settings = [
     }, {
         id: "3",
         name: "Message 3",
-        type: "checkbox"
+        type: "radio",
+        options: [ "black", "blue"]
+    }, {
+        id: "4",
+        name: "Message 4",
+        type: "range",
+        options: {
+            min: "0",
+            max: "100"
+        } 
+    }, {
+        id: "5",
+        name: "Message 5",
+        type: "dropdown",
+        options: [ "test", "seconda voce"]
+    },  {
+        id: "6",
+        name: "Message 6",
+        type: "text"
     }, 
 ];
 
-function loadSettings(){
-    var table = document.getElementById("settings");
-
-    settings.forEach( function( setting ){
-        var type = "";
-        table.innerHTML = table.innerHTML + "<tr id='setting_"+setting.id+"'' class='setting'><td>"+setting.name+"</td><td><input type='"+setting.type+"'></td><tr>";
-        getSetting( setting.id );
-    });
-    
-}
-
-