diff --git a/public/index.html b/public/index.html
index c706c45d7..fa25263f2 100644
--- a/public/index.html
+++ b/public/index.html
@@ -14,7 +14,6 @@
 <!-- <body ng&#45;cloak class="ng&#45;cloak"> -->
 <body >
 
-  <ion-nav-bar class="bar-stable"></ion-nav-bar>
   <ion-nav-view name="main"></ion-nav-view>
 
   <script src="lib/ionic.bundle.min.js"></script>
diff --git a/public/views/confirm.html b/public/views/confirm.html
index 8fa5703a6..df6db6076 100644
--- a/public/views/confirm.html
+++ b/public/views/confirm.html
@@ -65,16 +65,15 @@
 
 
         <div class="item item-icon-right">
-          Add Memo
+          Add Description (not yet working...)
           <i class="icon ion-ios-arrow-right size-21"></i>
         </div>
       </div>
 
       <div class="card">
-        <div class="item item-text-wrap item-icon-right" ng-click="cancel()">
-          Slide to complete
-          <i class="icon ion-ios-arrow-thin-right size-21"></i>
-        </div>
+        <button class="item button button-full button-positive" ng-click="approve()">
+          Approve
+        </button>
       </div>
     </ion-content>
 
diff --git a/public/views/copayers.html b/public/views/copayers.html
index 46923b495..dacfe9ce7 100644
--- a/public/views/copayers.html
+++ b/public/views/copayers.html
@@ -1,7 +1,17 @@
 
 <ion-view  ng-controller="copayersController">
 
-  <ion-nav-title>{{wallet.name}}</ion-nav-title>
+
+  <ion-nav-bar class="bar-stable">
+    <ion-nav-title>{{wallet.name}}</ion-nav-title>
+    <ion-nav-buttons side="primary">
+      <button class="button" href ui-sref="tabs.home">
+        <i class="ion-arrow-left-c"></i> Back
+      </button>
+    </ion-nav-buttons>
+  </ion-nav-bar>
+
+
 
   <ion-nav-buttons side="primary">
     <button class="button"   href ui-sref="tabs.home">
diff --git a/public/views/preferences.html b/public/views/preferences.html
index c7aa21a7a..8d3793bc4 100644
--- a/public/views/preferences.html
+++ b/public/views/preferences.html
@@ -1,13 +1,13 @@
-<ion-view ng-controller="preferencesController" cache-view="false" ng-init="init()">
+<ion-view>
   <ion-nav-bar class="bar-stable">
   <ion-nav-title>Wallet Settings</ion-nav-title>
     <ion-nav-buttons side="primary">
-       <button class="button" href ui-sref="walletDetails">
+       <button class="button" href ui-sref="wallet.details">
          <i class="ion-arrow-left-c"></i> Back
        </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesController" cache-view="false" ng-init="init()">
     <div class="list">
       <div class="item item-divider">
         Preferences
@@ -15,7 +15,7 @@
       <div class="item item-icon-right" href ui-sref="preferencesAlias">
         <span translate>Wallet Name</span>
         <span class="item-note">
-          {{index.alias||index.walletName}}
+          {{alias||walletName}}
         </span>
         <i class="icon ion-ios-arrow-right"></i>
       </div>
@@ -38,7 +38,7 @@
         </span>
       </div>
       <div class="item item-icon-right"  href ui-sref="preferencesColor">
-        <span ng-style="{'color':index.backgroundColor}">&block;</span>
+        <span ng-style="{'color': backgroundColor}">&block;</span>
         <span translate>Wallet Color</span>
         <span class="item-note">
           {{index.alias||index.walletName}}
diff --git a/public/views/preferencesAbout.html b/public/views/preferencesAbout.html
index c80d2abca..b71362ce5 100644
--- a/public/views/preferencesAbout.html
+++ b/public/views/preferencesAbout.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesAbout" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>About Copay</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content>
+  <ion-content ng-controller="preferencesAbout" cache-view="false">
     <div class="item item-divider">
       Release information
     </div>
diff --git a/public/views/preferencesAlias.html b/public/views/preferencesAlias.html
index 98d95c54c..988fb9e67 100644
--- a/public/views/preferencesAlias.html
+++ b/public/views/preferencesAlias.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesAliasController" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Alias</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesAliasController" cache-view="false">
     <form name="aliasForm" ng-submit="save(aliasForm)" novalidate>
       <label class="item item-input item-stacked-label">
         <span class="input-label" transalate>Alias for {{walletName}}</span>
diff --git a/public/views/preferencesAltCurrency.html b/public/views/preferencesAltCurrency.html
index 1c3eb7db2..5157af060 100644
--- a/public/views/preferencesAltCurrency.html
+++ b/public/views/preferencesAltCurrency.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesAltCurrencyController" cache-view="false" ng-init="init()">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Alternative Currency</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
        </button>
      </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content>
+  <ion-content ng-controller="preferencesAltCurrencyController" ng-init="init()" cache-view="false">
     <ion-radio ng-repeat="altCurrency in altCurrencyList" ng-value="altCurrency.isoCode" ng-model="currentCurrency"
       ng-click="save(altCurrency)">{{altCurrency.name}}
     </ion-radio>
diff --git a/public/views/preferencesBwsUrl.html b/public/views/preferencesBwsUrl.html
index 94249b5ba..81ae2ada2 100644
--- a/public/views/preferencesBwsUrl.html
+++ b/public/views/preferencesBwsUrl.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesBwsUrlController" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Wallet Service URL</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesBwsUrlController" cache-view="false">
     <form name="settingsBwsUrlForm" ng-submit="save(settingsBwsUrlForm)" novalidate>
       <label class="item item-input item-stacked-label">
         <span class="input-label" transalate>Wallet Service URL</span><a ng-click="resetDefaultUrl()" translate> Set default url</a>
diff --git a/public/views/preferencesColor.html b/public/views/preferencesColor.html
index d28f1f6f7..d356610ef 100644
--- a/public/views/preferencesColor.html
+++ b/public/views/preferencesColor.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesColorController" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Color</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesColorController" cache-view="false">
     <ion-radio ng-repeat="c in colorList" ng-value="c" ng-model="currentColor" ng-click="save(c)">
       <span ng-style="{'color': c}">&block;</span>
     </ion-radio>
diff --git a/public/views/preferencesDeleteWallet.html b/public/views/preferencesDeleteWallet.html
index 04969db7a..26781c44a 100644
--- a/public/views/preferencesDeleteWallet.html
+++ b/public/views/preferencesDeleteWallet.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesDeleteWalletController" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Delete Wallet</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesDeleteWalletController" cache-view="false">
     <div translate>Warning!</div>
     <div translate>Permanently delete this wallet. THIS ACTION CANNOT BE REVERSED</div>
     <div class="right" ng-style="{'color':index.backgroundColor}" ng-show="!isDeletingWallet">
diff --git a/public/views/preferencesDeleteWords.html b/public/views/preferencesDeleteWords.html
index 54b72dc9d..bd9c69d28 100644
--- a/public/views/preferencesDeleteWords.html
+++ b/public/views/preferencesDeleteWords.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesDeleteWordsController" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Delete Recovery Phrase</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesDeleteWordsController" cache-view="false">
     <div ng-show="!deleted">
       <div ng-show="error">
         {{error|translate}}
diff --git a/public/views/preferencesEmail.html b/public/views/preferencesEmail.html
index 7af7b5b62..02477b291 100644
--- a/public/views/preferencesEmail.html
+++ b/public/views/preferencesEmail.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesEmailController" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Email Notifications</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesEmailController" cache-view="false">
     <form name="emailForm" ng-submit="save(emailForm)" novalidate>
       <label class="item item-input item-stacked-label">
         <span class="input-label" transalate>Email for wallet notifications</span>
diff --git a/public/views/preferencesFee.html b/public/views/preferencesFee.html
index e8d5ebaff..fd7b697bd 100644
--- a/public/views/preferencesFee.html
+++ b/public/views/preferencesFee.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesFeeController" cache-view="false" ng-init="init()">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Preferences fee</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -8,7 +8,7 @@
      </ion-nav-buttons>
   </ion-nav-bar>
 
-  <ion-content>
+  <ion-content ng-controller="preferencesFeeController" cache-view="false" ng-init="init()">
     <div ng-show="loading">
       <ion-spinner class="spinner-dark" icon="lines">Loading...</ion-spinner>
     </div>
diff --git a/public/views/preferencesHistory.html b/public/views/preferencesHistory.html
index afe85b24f..4bd955531 100644
--- a/public/views/preferencesHistory.html
+++ b/public/views/preferencesHistory.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesHistory" cache-view="false" ng-init="index.updatingTxHistory ? null : csvHistory()">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Transaction History</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesHistory" cache-view="false" ng-init="index.updatingTxHistory ? null : csvHistory()">
     <div class="item item-divider"></div>
     <div class="item" ng-show="csvReady && !index.isCordova" ng-csv="csvContent" csv-header="csvHeader" filename="Copay-{{index.alias || index.walletName}}.csv">
       <span translate>Export to file</span>
diff --git a/public/views/preferencesInformation.html b/public/views/preferencesInformation.html
index 7e0587475..82f1787db 100644
--- a/public/views/preferencesInformation.html
+++ b/public/views/preferencesInformation.html
@@ -1,5 +1,5 @@
 
-<ion-view ng-controller="preferencesInformation" cache-view="false" ng-init="init()">
+<ion-view>
   <ion-nav-bar class="bar-stable">
   <ion-nav-title>Wallet Information</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -8,7 +8,7 @@
        </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="preferencesInformation" cache-view="false" ng-init="init()">
     <div class="list">
       <div class="item item-divider">
         Wallet Information
diff --git a/public/views/preferencesLanguage.html b/public/views/preferencesLanguage.html
index 4509bd097..30f7b81dd 100644
--- a/public/views/preferencesLanguage.html
+++ b/public/views/preferencesLanguage.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesLanguageController" ng-init="init()" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Languages</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content>
+  <ion-content ng-controller="preferencesLanguageController" ng-init="init()" cache-view="false">
     <ion-radio ng-repeat="lang in availableLanguages" ng-value="lang.isoCode" ng-model="currentLanguage"
       ng-click="save(lang.isoCode)">{{lang.name}}
     </ion-radio>
diff --git a/public/views/preferencesLogs.html b/public/views/preferencesLogs.html
index 51238b476..682db28f8 100644
--- a/public/views/preferencesLogs.html
+++ b/public/views/preferencesLogs.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesLogs" ng-init="init()" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Session log</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content>
+  <ion-content ng-controller="preferencesLogs" ng-init="init()" cache-view="false">
     <button ng-show="isCordova" ng-click="logs.sendLogs()"><i class="fi-mail"></i>
     <span translate>Send by email</span>
     </button>
diff --git a/public/views/preferencesUnit.html b/public/views/preferencesUnit.html
index 262889c6c..7fa4769c6 100644
--- a/public/views/preferencesUnit.html
+++ b/public/views/preferencesUnit.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="preferencesUnitController" ng-init="init()" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Unit</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar class="bar-stable">
-  <ion-content>
+  <ion-content ng-controller="preferencesUnitController" ng-init="init()" cache-view="false">
     <ion-radio ng-repeat="unit in unitList" ng-value="unit.code" ng-model="currentUnit"
       ng-click="save(unit)">{{unit.shortName}}
     </ion-radio>
diff --git a/public/views/tab-home.html b/public/views/tab-home.html
index fab3bf2f0..e7d193aa8 100644
--- a/public/views/tab-home.html
+++ b/public/views/tab-home.html
@@ -1,5 +1,8 @@
 
-<ion-view view-title="Home">
+<ion-view>
+  <ion-nav-bar class="bar-stable">
+    <ion-nav-title>Home</ion-nav-title>
+  </ion-nav-bar>
   <ion-content class="padding home" ng-controller="tabHomeController">
     <a href="#/add"><i class="ion-ios-plus-outline right"></i></a>
     <h2>Wallets </h2>
@@ -8,7 +11,7 @@
 
         <li ng-show="wallets[0]"
           ng-repeat="item in wallets track by $index" class="item item-icon-left"
-          menu-toggle href ui-sref="walletDetails({'walletId': item.id})">
+          menu-toggle href ui-sref="wallet.details({'walletId': item.id})">
             <i class="icon ion-briefcase size-21" ng-style="{'color':item.color}"></i>
             {{item.name || item.id}}
             <span  ng-show="item.n > 1" class="text-gray">
diff --git a/public/views/tab-receive.html b/public/views/tab-receive.html
index 7877b0ce3..7e2ae157f 100644
--- a/public/views/tab-receive.html
+++ b/public/views/tab-receive.html
@@ -1,6 +1,6 @@
-<ion-view ng-controller="tabReceiveController" cache-view="false">
+<ion-view>
   <ion-nav-title>Receive</ion-nav-title>
-  <ion-content ng-init="init()">
+  <ion-content ng-controller="tabReceiveController" ng-init="init()"  cache-view="false">
 
     <div class="text-center m30v" ng-click="copyToClipboard(addr, $event)" ng-show="addr" >
       <qrcode size="220" data="bitcoin:{{addr}}" ng-show="addr"></qrcode>
@@ -34,7 +34,7 @@ Error: {{addrError}}
       </div>
     </div>
 
- 
+
     <div ng-show="!incomplete">
       <div class="item item-icon-left" ng-click="shareAddress(addr)" ng-show="isCordova && addr" ng-disabled="generatingAddress">
         <i class="icon ion-ios-upload-outline"></i>
diff --git a/public/views/tab-settings.html b/public/views/tab-settings.html
index 869da746a..019ad8190 100644
--- a/public/views/tab-settings.html
+++ b/public/views/tab-settings.html
@@ -1,6 +1,6 @@
-<ion-view ng-controller="tabSettingsController" cache-view="false" ng-init="init()">
+<ion-view>
   <ion-nav-title>Global Settings</ion-nav-title>
-  <ion-content class="has-header">
+  <ion-content class="has-header" ng-controller="tabSettingsController" cache-view="false" ng-init="init()">
     <div class="item item-divider">
     </div>
     <div class="list">
diff --git a/public/views/termOfUse.html b/public/views/termOfUse.html
index ad094b3c7..9d06a1ae3 100644
--- a/public/views/termOfUse.html
+++ b/public/views/termOfUse.html
@@ -1,4 +1,4 @@
-<ion-view ng-controller="termOfUseController" cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
     <ion-nav-title>Terms of Use</ion-nav-title>
     <ion-nav-buttons side="primary">
@@ -7,7 +7,7 @@
      </button>
     </ion-nav-buttons>
   </ion-nav-bar>
-  <ion-content>
+  <ion-content ng-controller="termOfUseController" cache-view="false">
 		<p>
 			<div ng-include="'views/includes/terms.html'"></div>
 		</p>
diff --git a/public/views/translators.html b/public/views/translators.html
index ffbfa1ec1..db809c8bf 100644
--- a/public/views/translators.html
+++ b/public/views/translators.html
@@ -1,4 +1,4 @@
-<ion-view cache-view="false">
+<ion-view>
   <ion-nav-bar class="bar-stable">
   <ion-nav-title>Translators</ion-nav-title>
   <ion-nav-buttons side="primary">
diff --git a/public/views/walletDetails.html b/public/views/walletDetails.html
index b34bda48f..0d845d9d3 100644
--- a/public/views/walletDetails.html
+++ b/public/views/walletDetails.html
@@ -1,19 +1,21 @@
 
 
 <ion-view ng-controller="walletDetailsController">
+  <ion-nav-bar class="bar-stable">
+    <ion-nav-title>{{wallet.name}}</ion-nav-title>
 
-  <ion-nav-title>{{wallet.name}}</ion-nav-title>
-
-  <ion-nav-buttons side="primary">
-    <button class="button" href ui-sref="tabs.home">
-      <i class="ion-arrow-left-c"></i> Back
-    </button>
-  </ion-nav-buttons>
-  <ion-nav-buttons side="secondary">
-      <button class="button button-icon icon ion-ios-settings" href ui-sref="preferences"></button>
-  </ion-nav-buttons>
+    <ion-nav-buttons side="primary">
+      <button class="button" href ui-sref="tabs.home">
+        <i class="ion-arrow-left-c"></i> Back
+      </button>
+    </ion-nav-buttons>
+    <ion-nav-buttons side="secondary">
+        <button class="button button-icon icon ion-ios-settings" href ui-sref="wallet.preferences"></button>
+    </ion-nav-buttons>
+  </ion-nav-bar>
 
   <ion-content delegate-handle="my-handle" overflow-scroll="true">
+    <button class="button button-icon icon ion-ios-settings" href ui-sref="wallet.preferences"></button>
 
     <div ng-show="!wallet">
       No Wallet
@@ -25,7 +27,7 @@
 
     <div ng-show="!wallet.isComplete()">
       Wallet Incomplete.
-      <a href ui-sref="copayers({'walletId': wallet.id})" class="button">
+      <a href ui-sref="wallet.copayers" class="button">
         Wait for Copayers
       </a>
     </div>
diff --git a/src/js/controllers/confirm.js b/src/js/controllers/confirm.js
index 0e31517e3..34df57178 100644
--- a/src/js/controllers/confirm.js
+++ b/src/js/controllers/confirm.js
@@ -1,7 +1,20 @@
 
 'use strict';
 
-angular.module('copayApp.controllers').controller('confirmController', function($rootScope, $scope, $filter, $timeout, $ionicScrollDelegate, walletService, platformInfo, lodash, configService, go, rateService, $stateParams, $window, $state, $log, profileService, bitcore) {
+angular.module('copayApp.controllers').controller('confirmController', function($rootScope, $scope, $filter, $timeout, $ionicScrollDelegate, walletService, platformInfo, lodash, configService, go, rateService, $stateParams, $window, $state, $log, profileService, bitcore, $ionicPopup) {
+
+  // An alert dialog
+  var showAlert = function(title, msg, cb) {
+    $log.warn(title +  ":"+ msg);
+    var alertPopup = $ionicPopup.alert({
+      title: title,
+      template: msg
+    });
+
+    if (!cb) cb = function() {};
+
+    alertPopup.then(cb);
+  };
 
 
   var unitToSatoshi;
@@ -11,6 +24,7 @@ angular.module('copayApp.controllers').controller('confirmController', function(
   var self = $scope.self;
   var SMALL_FONT_SIZE_LIMIT = 13;
   var LENGTH_EXPRESSION_LIMIT = 19;
+  var config;
 
   $scope.init = function() {
 console.log('[confirm.js.23:$scope:]',$stateParams); //TODO
@@ -23,11 +37,12 @@ console.log('[confirm.js.23:$scope:]',$stateParams); //TODO
 
     $scope.isCordova = platformInfo.isCordova;
 
-    var config = configService.getSync().wallet.settings;
-    $scope.unitName = config.unitName;
-    $scope.alternativeIsoCode = config.alternativeIsoCode;
+    config = configService.getSync().wallet;
 
-    unitToSatoshi = config.unitToSatoshi;
+    $scope.unitName = config.settings.unitName;
+    $scope.alternativeIsoCode = config.settings.alternativeIsoCode;
+
+    unitToSatoshi = config.settings.unitToSatoshi;
     satToUnit = 1 / unitToSatoshi;
     satToBtc = 1 / 100000000;
 
@@ -40,112 +55,145 @@ console.log('[confirm.js.23:$scope:]',$stateParams); //TODO
     $scope.setWallets(network);
 
     $scope.alternativeAmount = toFiat($scope.toAmount);
-    unitDecimals = config.unitDecimals;
+    unitDecimals = config.settings.unitDecimals;
+
+    $scope.$on("$ionicSlides.slideChangeEnd", function(event, data) {
+      $scope.wallet = $scope.wallets[data.slider.activeIndex];
+    });
+
+    createTx($scope.toAddress, $scope.toAmount);
+
     $timeout(function() {
       $ionicScrollDelegate.resize();
     }, 100);
   };
 
+  var  setSendError = function(msg) {
+    showAlert('Error creating transaction', msg);
+  };
+
+  var createTx = function(toAddress, toAmount, comment) {
+    //
+    var currentSpendUnconfirmed = config.spendUnconfirmed;
 
 
-  var send = function() {
-    if (!$scope._amount || !$scope._address) return;
-    var unitToSat = this.unitToSatoshi;
-    var currentSpendUnconfirmed = configWallet.spendUnconfirmed;
+////
+    var wallet = $scope.wallet;
+    if (!wallet) {
+      $log.error('No wallet selected')
+      return;
+    };
 
     var outputs = [];
-
-    this.resetError();
-
-    if (isCordova && this.isWindowsPhoneApp)
-      $rootScope.shouldHideMenuBar = true;
-
-    var form = $scope.sendForm;
-    var comment = form.comment.$modelValue;
+    var comment = $scope.comment;
+    var paypro = $scope.paypro;
 
     // ToDo: use a credential's (or fc's) function for this
-    if (comment && !client.credentials.sharedEncryptingKey) {
+    if (comment && !wallet.credentials.sharedEncryptingKey) {
       var msg = 'Could not add message to imported wallet without shared encrypting key';
       $log.warn(msg);
-      return self.setSendError(gettext(msg));
+      return setSendError(gettext(msg));
     }
 
-    if (form.amount.$modelValue * unitToSat > Number.MAX_SAFE_INTEGER) {
+    if (toAmount > Number.MAX_SAFE_INTEGER) {
       var msg = 'Amount too big';
       $log.warn(msg);
-      return self.setSendError(gettext(msg));
+      return setSendError(gettext(msg));
     };
 
     $timeout(function() {
-      var paypro = self._paypro;
-      var address, amount;
+        outputs.push({
+          'toAddress': toAddress,
+          'amount': toAmount,
+          'message': comment
+        });
 
-      address = form.address.$modelValue;
-      amount = parseInt((form.amount.$modelValue * unitToSat).toFixed(0));
+        var txp = {};
 
-      outputs.push({
-        'toAddress': address,
-        'amount': amount,
-        'message': comment
-      });
-
-      var txp = {};
-
-      if (!lodash.isEmpty(self.sendMaxInfo)) {
-        txp.sendMax = true;
-        txp.inputs = self.sendMaxInfo.inputs;
-        txp.fee = self.sendMaxInfo.fee;
-      } else {
-        txp.amount = amount;
-      }
-
-      txp.toAddress = address;
-      txp.outputs = outputs;
-      txp.message = comment;
-      txp.payProUrl = paypro ? paypro.url : null;
-      txp.excludeUnconfirmedUtxos = configWallet.spendUnconfirmed ? false : true;
-      txp.feeLevel = walletSettings.feeLevel || 'normal';
-
-      ongoingProcess.set('creatingTx', true);
-      walletService.createTx(client, txp, function(err, createdTxp) {
-        ongoingProcess.set('creatingTx', false);
-        if (err) {
-          return self.setSendError(err);
-        }
-
-        if (!client.canSign() && !client.isPrivKeyExternal()) {
-          $log.info('No signing proposal: No private key');
-          ongoingProcess.set('sendingTx', true);
-          walletService.publishTx(client, createdTxp, function(err, publishedTxp) {
-            ongoingProcess.set('sendingTx', false);
-            if (err) {
-              return self.setSendError(err);
-            }
-            self.resetForm();
-            go.walletHome();
-            var type = txStatus.notify(createdTxp);
-            $scope.openStatusModal(type, createdTxp, function() {
-              return $scope.$emit('Local/TxProposalAction');
-            });
-          });
+        // TODO
+        if (!lodash.isEmpty($scope.sendMaxInfo)) {
+          txp.sendMax = true;
+          txp.inputs = $scope.sendMaxInfo.inputs;
+          txp.fee = $scope.sendMaxInfo.fee;
         } else {
-          $rootScope.$emit('Local/NeedsConfirmation', createdTxp, function(accept) {
-            if (accept) self.confirmTx(createdTxp);
-            else self.resetForm();
-          });
+          txp.amount = toAmount;
         }
-      });
 
-    }, 100);
+        txp.toAddress = toAddress;
+//        txp.outputs = outputs;
+        txp.message = comment;
+        txp.payProUrl = paypro ? paypro.url : null;
+        txp.excludeUnconfirmedUtxos = config.spendUnconfirmed ? false : true;
+        txp.feeLevel = config.feeLevel || 'normal';
+
+
+console.log('[confirm.js.100] creatingTx', wallet, txp); //TODO
+        walletService.createTx(wallet, txp, function(err, createdTxp) {
+console.log('[confirm.js.102:createdTxp:]',err, createdTxp); //TODO
+          if (err) {
+            return setSendError(err);
+          }
+
+          $scope.fee = createdTxp.fee;
+          $scope.txp = createdTxp;
+        });
+    });
   };
 
 
+  $scope.approve = function() {
+    var wallet = $scope.wallet;
+    var txp  =$scope.txp;
+    if (!wallet) {
+      $log.error('No wallet selected')
+      return;
+    };
+
+    if (!txp) {
+      $log.error('No txp')
+      return;
+    };
+
+
+
+    if (!wallet.canSign() && !wallet.isPrivKeyExternal()) {
+      $log.info('No signing proposal: No private key');
+//      ongoingProcess.set('sendingTx', true);
+      walletService.publishTx(walelt, txp, function(err, publishedTxp) {
+//        ongoingProcess.set('sendingTx', false);
+        if (err) {
+          return setSendError(err);
+        }
+
+        // TODO
+        $state.transitionTo('tab.home');
+        // TODO
+        // var type = txStatus.notify(createdTxp);
+        // $scope.openStatusModal(type, createdTxp, function() {
+        //   return $scope.$emit('Local/TxProposalAction');
+        // });
+      });
+    } else {
+     
+      $rootScope.$emit('Local/NeedsConfirmation', txp, function(accept) {
+        if (accept) self.confirmTx(txp);
+        else self.resetForm();
+      });
+    }
+  };
+
+
+
 
   function fromFiat(val) {
+    if (!rateService.isAvailable()) return;
+    
     return parseFloat((rateService.fromFiat(val, $scope.alternativeIsoCode) * satToUnit).toFixed(unitDecimals), 10);
   };
 
   function toFiat(val) {
+    if (!rateService.isAvailable()) return;
+
     return parseFloat((rateService.toFiat(val * unitToSatoshi, $scope.alternativeIsoCode)).toFixed(2), 10);
   };
 
@@ -166,7 +214,10 @@ console.log('[confirm.js.23:$scope:]',$stateParams); //TODO
 
   $scope.setWallets = function(network) {
     $scope.wallets = profileService.getWallets({onlyComplete:true, network: network});
+    $scope.wallet = $scope.wallets[0];
   };
 
 
+
+
 });
diff --git a/src/js/controllers/preferences.js b/src/js/controllers/preferences.js
index f06efe8e5..6d753c779 100644
--- a/src/js/controllers/preferences.js
+++ b/src/js/controllers/preferences.js
@@ -1,11 +1,11 @@
 'use strict';
 
 angular.module('copayApp.controllers').controller('preferencesController',
-  function($scope, $rootScope, $timeout, $log, configService, profileService, fingerprintService, walletService) {
+  function($scope, $rootScope, $timeout, $log, $stateParams, configService, profileService, fingerprintService, walletService) {
 
     var fc;
     var config = configService.getSync();
-
+    console.log($stateParams);
     var disableFocusListener = $rootScope.$on('Local/NewFocusedWalletReady', function() {
       $scope.init();
     });
@@ -19,6 +19,11 @@ angular.module('copayApp.controllers').controller('preferencesController',
 
       fc = profileService.focusedClient;
       if (fc) {
+
+        $scope.backgroundColor = fc.color;
+        config.aliasFor = config.aliasFor || {};
+        $scope.walletName = fc.credentials.walletName;
+        $scope.alias = config.aliasFor[fc.credentials.walletId] || $scope.walletName;
         $scope.encryptEnabled = walletService.isEncrypted(fc);
         if (fc.isPrivKeyExternal)
           $scope.externalSource = fc.getPrivKeyExternalSourceName() == 'ledger' ? 'Ledger' : 'Trezor';
diff --git a/src/js/controllers/tab-home.js b/src/js/controllers/tab-home.js
index 71c926dd4..2a7044a41 100644
--- a/src/js/controllers/tab-home.js
+++ b/src/js/controllers/tab-home.js
@@ -1,7 +1,7 @@
 'use strict';
 
 angular.module('copayApp.controllers').controller('tabHomeController',
-  function($rootScope, $timeout, $scope, lodash, profileService, walletService, configService ) {
+  function($rootScope, $timeout, $scope, $state, lodash, profileService, walletService, configService ) {
     var self = this;
 
 
@@ -34,4 +34,7 @@ angular.module('copayApp.controllers').controller('tabHomeController',
     self.setWallets();
     self.updateAllClients();
     $scope.bitpayCardEnabled = true; // TODO
+
+
+    $state.transitionTo('confirm', {toAmount:555500, toAddress: 'mvfAwUJohJWibGzBZgAUGsDarsr4Z4NovU', toName: 'bla bla'});
   });
diff --git a/src/js/controllers/walletDetails.js b/src/js/controllers/walletDetails.js
index e432286fb..279389173 100644
--- a/src/js/controllers/walletDetails.js
+++ b/src/js/controllers/walletDetails.js
@@ -84,8 +84,8 @@ angular.module('copayApp.controllers').controller('walletDetailsController', fun
   var wallet = profileService.getWallet($stateParams.walletId);
   $scope.wallet = wallet;
 
-
   if (wallet) {
+    profileService.setAndStoreFocus(wallet.id, function() {});
     walletService.updateStatus(wallet, {}, function(err, status) {
       if (err) {} // TODO
     });
diff --git a/src/js/routes.js b/src/js/routes.js
index e7c8db4ef..2b3ef502f 100644
--- a/src/js/routes.js
+++ b/src/js/routes.js
@@ -93,27 +93,43 @@ angular.module('copayApp').config(function(historicLogProvider, $provide, $logPr
           }
         }
       })
-      .state('walletDetails', {
+      .state('wallet', {
+        url: '/wallet/{walletId}',
+        abstract: true,
+        needProfile: true,
+        views: {
+          'main': {
+            template: '<ui-view/>',
+          },
+        },
+      })
+      .state('wallet.details', {
         url: '/details',
         needProfile: true,
-        views: {
-          'main': {
-            templateUrl: 'views/walletDetails.html',
-          },
-        },
-        params: {
-          walletId: null,
-        },
+        templateUrl: 'views/walletDetails.html'
       })
-      .state('walletHome', {
-        url: '/old',
+      .state('wallet.preferences', {
+        url: '/preferences',
         needProfile: true,
-        views: {
-          'main': {
-            templateUrl: 'views/walletHome.html',
-          },
-        }
+        templateUrl: 'views/preferences.html'
       })
+      .state('wallet.copayers', {
+        url: '/copayers',
+        needProfile: true,
+        cache: false,
+        templateUrl: 'views/copayers.html'
+      })
+
+// OLD
+      // .state('walletHome', {
+      //   url: '/old',
+      //   needProfile: true,
+      //   views: {
+      //     'main': {
+      //       templateUrl: 'views/walletHome.html',
+      //     },
+      //   }
+      // })
       .state('tabs', {
         url: '/tabs',
         cache: false,
@@ -250,29 +266,6 @@ angular.module('copayApp').config(function(historicLogProvider, $provide, $logPr
           },
         }
       })
-      .state('copayers', {
-        url: '/copayers',
-        needProfile: true,
-        cache: false,
-        views: {
-          'main': {
-            templateUrl: 'views/copayers.html'
-          },
-        },
-        params: {
-          walletId: null,
-        },
-      })
-      .state('preferences', {
-        url: '/preferences',
-        templateUrl: 'views/preferences.html',
-        needProfile: true,
-        views: {
-          'main': {
-            templateUrl: 'views/preferences.html',
-          },
-        }
-      })
       .state('preferencesLanguage', {
         url: '/preferencesLanguage',
         needProfile: true,
diff --git a/src/sass/main.scss b/src/sass/main.scss
index be3be54ab..eab415287 100644
--- a/src/sass/main.scss
+++ b/src/sass/main.scss
@@ -4,6 +4,538 @@
  *
  */
 
+.walletHome h4.title {
+  padding: 0px 0 10px 15px;
+  margin: 5px 0 5px 0;
+  font-size: 16px;
+}
+
+.bitpay_card select {
+  margin: 5px 0 5px 0;
+  padding: 0 20px;
+  font-size: 16px;
+  width: auto;
+  border: none;
+}
+
+.bitpay_card select:focus {
+  background-color: transparent;
+}
+
+.preferences ul, .modal-content ul {
+  font-size: 14px;
+  background: white;
+}
+
+.preferences ul li {
+  padding: 16px 10px 16px 16px;
+  border-bottom: 1px solid #E9E9EC;
+}
+
+.addressbook-input, .disabled-input {
+  display: block;
+  margin-bottom: 1.5rem;
+  background-color: #E4E8EC;
+  padding-left: 0.5rem;
+  color: #2C3E50;
+  font-size: 13px;
+  height: 35px;
+  padding-top: 7px;
+}
+
+.alt-currency {
+  padding: 0.05rem 0.2rem;
+  border-radius: 2px;
+  font-size: 10px;
+  color: #fff;
+  font-weight: 700;
+}
+
+.sub-header {
+  background: #F1f3F5;
+  padding: 0.8rem;
+  overflow: hidden;
+}
+
+.status {
+  color: #FFFFFF;
+  background-color: #A02F23;
+  position: absolute;
+  left: 250px;
+  right: 0;
+  bottom: 0;
+  padding: 10px 1rem 10px 0.5rem;
+  z-index: 9;
+  font-size: 14px;
+  text-align: left;
+  line-height: 17px;
+}
+
+.status-first-line {
+  z-index: 9;
+  font-size: 16px;
+}
+
+.box-notification {
+  position: relative;
+  font-size: 12px;
+  padding: 0.5rem;
+  border-radius: 2px;
+  background: #FFFFFF;
+  .box-icon {
+    position: absolute;
+    top: 0;
+    left: 0;
+    color: white;
+    background-color: #1ABC9C;
+    padding: 0 0.5rem;
+    border-top-left-radius: 4px;
+    border-bottom-left-radius: 4px;
+    height: 100%;
+    i {
+      position: relative;
+      top: 10%;
+      display: block;
+    }
+    &.error {
+      background-color: #ED4A43;
+    }
+    &.secondary {
+      background-color: #3498DB;
+    }
+  }
+}
+
+a.close-notification {
+  position: absolute;
+  top: -4px;
+  right: 10px;
+  font-size: 24px;
+}
+
+ul.tx-copayers {
+  background: #E4E8EC;
+  padding: 0.3rem 0.8rem;
+  margin-left: 0;
+  box-shadow: inset 0 1px 1px 0 rgba(10, 19, 28, 0.12);
+  border-radius: 0 0 3px 3px;
+}
+
+.tx-copayers li {
+  list-style: none;
+  padding: 0.3rem;
+  font-size: 12px;
+  &.bottom-line-copayers {
+    border-bottom: 1px solid #CAD2DA;
+  }
+}
+
+.last-transactions-content {
+  background: #fff;
+  padding: 0.8rem 1rem;
+  cursor: pointer;
+  border-bottom: 1px solid #E4E8EC;
+}
+
+.sign-action {
+  background: #E4E8EC;
+  width: 100%;
+  padding: 1rem;
+  text-align: center;
+}
+
+.icon-circle-active {
+  position: absolute;
+  bottom: 2px;
+  right: 2px;
+}
+
+.icon-sign {
+  padding: 0.2rem 0.3rem;
+  border-radius: 100%;
+  color: #fff;
+  font-size: 10px;
+  margin-top: 3px;
+  &.check {
+    background-color: #3FBC9C;
+  }
+  &.x {
+    background-color: #C0392B;
+  }
+}
+
+.circle-icon {
+  background: #fff;
+  border-radius: 100%;
+  padding: 1.5rem;
+  width: 80px;
+  height: 80px;
+  margin: 0 auto;
+}
+
+.date-message {
+  background-color: #213140;
+  border-radius: 3px;
+  font-size: 12px;
+  padding: 0.2rem 0.4rem;
+  color: #7A8C9E;
+}
+
+.input-note {
+  margin-top: -10px;
+  display: block;
+  margin-bottom: 1rem;
+}
+
+.send-note {
+  background-color: #F8F8FB;
+  padding: 10px;
+  span {
+    margin-bottom: 5px;
+    font-size: 12px;
+    color: #2C3E50;
+  }
+}
+
+.manage a {
+  text-transform: uppercase;
+  font-weight: 700;
+  color: #4B6178;
+  padding: 1.5rem 1rem;
+  display: block;
+  overflow: hidden;
+  span {
+    display: block;
+    margin-top: 8px;
+    float: left;
+  }
+}
+
+ul.manage li {
+  border-bottom: 1px solid #f1f3f5;
+}
+
+.manage a i.circle {
+  background-color: #4B6178;
+  width: 50px;
+  height: 50px;
+  padding: 0.65rem;
+  border-radius: 100%;
+  display: block;
+  font-size: 30px;
+  color: #fff;
+  float: left;
+  margin-right: 20px;
+  &.plus-fixed {
+    padding: 0.1rem 0.9rem;
+  }
+}
+
+.name-wallet {
+  font-size: 14px;
+  font-weight: 400;
+  padding-top: 0 !important;
+  line-height: 14px;
+}
+
+.release {
+  cursor: pointer;
+  cursor: hand;
+  background-color: #E9E9EC;
+  margin-top: -30px;
+  margin-bottom: 5px;
+  padding-top: 30px;
+  padding-bottom: 20px;
+  text-align: center;
+  text-color: #444;
+  span {
+    margin-left: 15px;
+  }
+  i {
+    margin-right: 15px;
+  }
+}
+
+.locked {
+  font-size: 11px;
+  color: #7A8C9E;
+}
+
+.tx-proposal i {
+  padding: .1rem .3rem;
+  background-color: #A5B2BF;
+  border-radius: 100%;
+  color: #fff;
+  &.active {
+    background-color: #A02F23;
+  }
+}
+
+.header-modal {
+  background: #fff;
+  width: 100%;
+  padding-top: 20px;
+  padding-bottom: 20px;
+  position: relative;
+}
+
+.ellipsis {
+  display: block;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.wallet-selection.wallets {
+  background-color: #213140;
+}
+
+ul.wallet-selection.wallets {
+  margin: 0;
+  overflow: hidden;
+}
+
+.wallet-selection.wallets li {
+  overflow: hidden;
+  padding: 1rem;
+  a {
+    display: block;
+  }
+}
+
+.pointer {
+  cursor: pointer;
+}
+
+.icon-wallet {
+  display: block;
+}
+
+.walletHome .icon-wallet {
+  display: inline-block;
+  margin: 0;
+  vertical-align: baseline;
+}
+
+.secret {
+  overflow-wrap: break-word;
+  word-wrap: break-word;
+  text-align: center;
+  font-size: 14px;
+  margin: 10px;
+}
+
+.session-expired {
+  background: rgba(32, 48, 64, 0.9);
+  width: 100%;
+  height: 100%;
+  position: absolute;
+  color: #fff;
+  z-index: 999;
+  padding-top: 20%;
+  text-align: center;
+  padding-left: 10%;
+  padding-right: 10%;
+}
+
+.amount {
+  width: 100%;
+  text-align: center;
+  padding: 1.5rem 1rem 1.5rem 1rem;
+  color: #fff;
+  height: 150px;
+  margin-bottom: 25px;
+}
+
+.alternative-amount {
+  height: 25px;
+  text-align: center;
+}
+
+.wallet-info {
+  position: absolute;
+  top: inherit;
+  left: 10px;
+  bottom: 26px;
+  font-size: 20px;
+  color: #fff;
+}
+
+.camera-icon a {
+  background: #4B6178;
+  box-shadow: 0px 0px 5px 0px rgba(0, 0, 0, 0.5);
+  color: #fff;
+  display: block;
+  position: absolute;
+  padding: 15px 17px;
+  border-radius: 100%;
+  top: inherit;
+  right: 15px;
+  bottom: 2px;
+  line-height: 12px;
+}
+
+.send .camera-icon a {
+  top: inherit;
+  bottom: 0;
+}
+
+.popup-txsent {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  background: rgba(24, 44, 58, 0.9);
+  i {
+    font-size: 5rem;
+    color: #4A90E2;
+    border-radius: 100%;
+    border-color: #4A90E2;
+    border: 2px solid;
+    width: 150px;
+    height: 150px;
+    display: block;
+    text-align: center;
+    padding-top: 1rem;
+  }
+}
+
+.popup-txsigned i, .popup-txrejected i {
+  font-size: 5rem;
+  color: #4A90E2;
+  border-radius: 100%;
+  border-color: #4A90E2;
+  border: 2px solid;
+  width: 150px;
+  height: 150px;
+  display: block;
+  text-align: center;
+  padding-top: 1rem;
+}
+
+.payment-proposal-head {
+  color: #fff;
+  padding: 10px 10px 20px 10px;
+  text-align: center;
+}
+
+.payment-proposal-to {
+  width: 100%;
+  display: inline-block;
+  padding: 5px 15px;
+  background-color: rgba(0, 0, 0, 0.1);
+  i {
+    position: inherit;
+    left: 25px;
+    padding-right: 10px;
+    border-right: 1px solid;
+    border-color: rgba(255, 255, 255, 0.1);
+    font-size: 20px;
+  }
+}
+
+
+/* notifications */
+
+.dr-notification-container {
+  position: absolute;
+  z-index: 10000;
+  width: 100%;
+  &.bottom {
+    bottom: 20px;
+  }
+  &.right {
+    right: 0;
+  }
+  &.left {
+    left: 20px;
+  }
+  &.top {
+    top: 45px;
+  }
+  &.center {
+    left: 50%;
+    margin-left: -190px;
+  }
+}
+
+.dr-notification-wrapper {
+  position: relative;
+  width: 100%;
+  margin: 0;
+  &.offline {
+    position: absolute;
+    top: 0px;
+    z-index: 2000;
+    opacity: 1.0 !important;
+    background-color: #2C3E50;
+  }
+  &.client-error {
+    position: absolute;
+    top: 45px;
+    z-index: 11;
+  }
+}
+
+.dr-notification-close-btn {
+  color: #A5B2BF;
+  border: 1px solid #A5B2BF;
+  border-radius: 100%;
+  display: inline-block;
+  padding: 0px 8px;
+  position: absolute;
+  right: 5px;
+  cursor: pointer;
+  z-index: 10;
+  margin: 14px 8px 0;
+  font-size: 20px;
+}
+
+.dr-notification-image {
+  float: left;
+  color: #fff;
+  text-align: center;
+  background-color: #213140;
+  width: 40px;
+  height: 40px;
+  font-size: 1.5rem;
+  border-radius: 100%;
+  margin: 0.6rem;
+  img {
+    margin: 15px;
+    max-width: 70px;
+    min-width: 48px;
+  }
+}
+
+.dr-notification-content {
+  line-height: 90%;
+  padding: 10px 50px 5px 60px;
+}
+
+.dr-notification-title {
+  color: #fff;
+  font-size: 12px;
+  margin-bottom: 0;
+  font-weight: 700;
+}
+
+.dr-notification {
+  background: rgba(44, 62, 80, 0.9);
+  box-shadow: 0px 2px 3px 0px rgba(0, 0, 0, 0.2);
+  -webkit-box-shadow: 0px 2px 3px 0px rgba(0, 0, 0, 0.2);
+  -moz-box-shadow: 0px 2px 3px 0px rgba(0, 0, 0, 0.2);
+  width: 100%;
+  clear: both;
+  overflow: hidden;
+  border-radius: 0;
+  height: 60px;
+}
+
+.dr-notification-text {
+  font-size: 11px;
+  color: #fff;
+}
+
 
 // QR Code
 
@@ -386,6 +918,18 @@
   text-transform: lowercase;
 }
 
+.text-italic {
+  font-style: italic;
+}
+
+.text-light {
+  font-weight: 200;
+}
+
+.text-bold {
+  font-weight: 700;
+}
+
 /*
  * Calculator
  */
