diff --git a/.jshintrc b/.jshintrc
new file mode 100644
index 0000000000..e6395a276a
--- /dev/null
+++ b/.jshintrc
@@ -0,0 +1,22 @@
+{
+  "undef": true,
+  "unused": false,
+  "strict": true,
+  "browser": true,
+  "jquery": true,
+  "devel": true,
+  "globals": [
+    "language",
+    "token",
+    "currencyCode",
+    "$",
+    "token",
+    "accountID",
+    "billID",
+    "currentMonthName",
+    "previousMonthName",
+    "nextMonthName",
+    "everything",
+    "moment"
+  ]
+}
\ No newline at end of file
diff --git a/public/js/accounts.js b/public/js/accounts.js
index 5435c2d6b9..ae240b8500 100644
--- a/public/js/accounts.js
+++ b/public/js/accounts.js
@@ -1,11 +1,23 @@
-$(function () {
+/* global $ */
 
+
+// Return a helper with preserved width of cells
+var fixHelper = function (e, ui) {
+    "use strict";
+    ui.children().each(function () {
+        $(this).width($(this).width());
+    });
+    return ui;
+};
+
+$(function () {
+    "use strict";
     if (typeof(googleLineChart) === "function" && typeof accountID !== 'undefined') {
         googleLineChart('chart/account/' + accountID, 'overview-chart');
     }
 
     // sortable!
-    if (typeof $(".sortable-table tbody").sortable != "undefined") {
+    if (typeof $(".sortable-table tbody").sortable !== "undefined") {
         $(".sortable-table tbody").sortable(
             {
                 helper: fixHelper,
@@ -19,23 +31,14 @@ $(function () {
 });
 
 
-// Return a helper with preserved width of cells
-var fixHelper = function (e, ui) {
-    ui.children().each(function () {
-        $(this).width($(this).width());
-    });
-    return ui;
-};
-
 function sortStop(event, ui) {
+    "use strict";
     var current = $(ui.item);
     var thisDate = current.data('date');
     var originalBG = current.css('backgroundColor');
 
 
-    if (current.prev().data('date') != thisDate && current.next().data('date') != thisDate) {
-        //console.log('False!');
-        //console.log('[' + current.prev().data('date') + '] [' + thisDate + '] [' + current.next().data('date') + ']');
+    if (current.prev().data('date') !== thisDate && current.next().data('date') !== thisDate) {
         // animate something with color:
         current.animate({
                             backgroundColor: "#d9534f"
@@ -59,10 +62,6 @@ function sortStop(event, ui) {
 
     // do extra animation when done?
     $.post('/transaction/reorder', {items: submit, date: thisDate, _token: token});
-    console.log(submit);
-
-    //console.log('TRUE!');
-    //console.log('[' + current.prev().data('date') + '] [' + thisDate + '] [' + current.next().data('date') + ']');
 
     current.animate({
                         backgroundColor: "#5cb85c"
diff --git a/public/js/bills.js b/public/js/bills.js
index 5f45f2a90b..58dd7ae943 100644
--- a/public/js/bills.js
+++ b/public/js/bills.js
@@ -1,7 +1,9 @@
-$(document).ready(function () {
+/* global googleComboChart, billID */
 
-        if (typeof(googleComboChart) === 'function' && typeof(billID) !== 'undefined') {
-            googleComboChart('chart/bill/' + billID, 'bill-overview');
-        }
-    }
+$(document).ready(function () {
+                      "use strict";
+                      if (typeof(googleComboChart) === 'function' && typeof(billID) !== 'undefined') {
+                          googleComboChart('chart/bill/' + billID, 'bill-overview');
+                      }
+                  }
 );
\ No newline at end of file
diff --git a/public/js/budgets.js b/public/js/budgets.js
index 1ab91d8b23..0c8f20f43f 100644
--- a/public/js/budgets.js
+++ b/public/js/budgets.js
@@ -1,4 +1,7 @@
+/* globals $, token, budgetID, repetitionID */
+
 $(function () {
+    "use strict";
     updateRanges();
     //$('input[type="range"]').change(updateSingleRange);
     $('input[type="range"]').on('input', updateSingleRange);
@@ -18,6 +21,7 @@ $(function () {
 
 
 function updateSingleRange(e) {
+    "use strict";
     // get some values:
     var input = $(e.target);
     var id = input.data('id');
@@ -63,6 +67,7 @@ function updateSingleRange(e) {
 }
 
 function updateTotal() {
+    "use strict";
     var sum = 0;
     $('input[type="range"]').each(function (i, v) {
         // get some values:
@@ -94,7 +99,8 @@ function updateTotal() {
 
 }
 
-function updateIncome(e) {
+function updateIncome() {
+    "use strict";
     $('#monthlyBudgetModal').empty().load('budgets/income', function () {
         $('#monthlyBudgetModal').modal('show');
     });
@@ -103,6 +109,7 @@ function updateIncome(e) {
 }
 
 function updateRanges() {
+    "use strict";
     /**
      * Update all ranges.
      */
@@ -133,8 +140,9 @@ function updateRanges() {
      * Update total sum:
      */
     var totalAmount = parseInt($('#totalAmount').data('value'));
+    var pct;
     if (sum <= totalAmount) {
-        var pct = sum / totalAmount * 100;
+        pct = sum / totalAmount * 100;
         $('#progress-bar-default').css('width', pct + '%');
         $('#progress-bar-warning').css('width', '0');
         $('#progress-bar-danger').css('width', '0');
@@ -142,7 +150,7 @@ function updateRanges() {
     } else {
         // we gaan er X overheen,
 
-        var pct = totalAmount / sum * 100;
+        pct = totalAmount / sum * 100;
         var danger = 100 - pct;
         var err = 100 - danger;
         $('#progress-bar-default').css('width', 0);
diff --git a/public/js/categories.js b/public/js/categories.js
index d4fb5c692f..073b8e2355 100644
--- a/public/js/categories.js
+++ b/public/js/categories.js
@@ -1,5 +1,6 @@
+/* globals $, categoryID */
 $(function () {
-
+    "use strict";
     if (typeof categoryID !== 'undefined') {
         googleColumnChart('chart/category/' + categoryID + '/all', 'all');
         googleColumnChart('chart/category/' + categoryID + '/month', 'month');
diff --git a/public/js/firefly.js b/public/js/firefly.js
index a8c075a761..c01a3269c7 100644
--- a/public/js/firefly.js
+++ b/public/js/firefly.js
@@ -1,8 +1,9 @@
+/* globals start, end, dateRangeURL, everything, firstDate, moment, currentMonthName, $, previousMonthName, nextMonthName, applyLabel, cancelLabel, toLabel, customRangeLabel, fromLabel, */
 $(function () {
-
+    "use strict";
     $('.currencySelect').click(currencySelect);
 
-    ranges = {};
+    var ranges = {};
     ranges[currentMonthName] = [moment().startOf('month'), moment().endOf('month')];
     ranges[previousMonthName] = [moment().subtract(1, 'month').startOf('month'), moment().subtract(1, 'month').endOf('month')];
     ranges[nextMonthName] = [moment().add(1, 'month').startOf('month'), moment().add(1, 'month').endOf('month')];
@@ -10,11 +11,6 @@ $(function () {
 
     $('#daterange').daterangepicker(
         {
-            //View::share('currentMonthName', $current);
-            //View::share('previousMonthName', $prev);
-            //View::share('nextMonthName', $next);
-
-
             ranges: ranges,
             opens: 'left',
             locale: {
@@ -54,6 +50,7 @@ $(function () {
 });
 
 function currencySelect(e) {
+    "use strict";
     var target = $(e.target);
     var symbol = target.data('symbol');
     var code = target.data('code');
diff --git a/public/js/gcharts.js b/public/js/gcharts.js
index 065c4975ad..c51700d9b9 100644
--- a/public/js/gcharts.js
+++ b/public/js/gcharts.js
@@ -1,13 +1,16 @@
+/* globals currencyCode, language, defaultPieChartOptions, defaultLineChartOptions, defaultColumnChartOptions, defaultBarChartOptions, defaultStackedColumnChartOptions, defaultComboChartOptions */
+/* exported googleLineChart, googleBarChart, googleColumnChart, googleStackedColumnChart, googleComboChart, googlePieChart */
 var google = google || {};
 google.load('visualization', '1.1', {'packages': ['corechart', 'bar', 'line'],'language': language  });
 
 function googleChart(chartType, URL, container, options) {
+    "use strict";
     if ($('#' + container).length === 1) {
         $.getJSON(URL).success(function (data) {
             /*
              Get the data from the JSON
              */
-            gdata = new google.visualization.DataTable(data);
+            var gdata = new google.visualization.DataTable(data);
 
             /*
              Format as money
@@ -67,25 +70,32 @@ function googleChart(chartType, URL, container, options) {
 
 
 function googleLineChart(URL, container, options) {
+    "use strict";
     return googleChart('line', URL, container, options);
 }
 
+
 function googleBarChart(URL, container, options) {
+    "use strict";
     return googleChart('bar', URL, container, options);
 }
 
 function googleColumnChart(URL, container, options) {
+    "use strict";
     return googleChart('column', URL, container, options);
 }
 
 function googleStackedColumnChart(URL, container, options) {
+    "use strict";
     return googleChart('stackedColumn', URL, container, options);
 }
 
 function googleComboChart(URL, container, options) {
+    "use strict";
     return googleChart('combo', URL, container, options);
 }
 
 function googlePieChart(URL, container, options) {
+    "use strict";
     return googleChart('pie', URL, container, options);
 }
diff --git a/public/js/gcharts.options.js b/public/js/gcharts.options.js
index b6cd11b95b..996c2849b8 100644
--- a/public/js/gcharts.options.js
+++ b/public/js/gcharts.options.js
@@ -1,3 +1,5 @@
+/* exported defaultLineChartOptions, defaultBarChartOptions, defaultComboChartOptions, defaultColumnChartOptions, defaultStackedColumnChartOptions, defaultPieChartOptions  */
+
 var defaultLineChartOptions = {
     curveType: 'function',
     legend: {
@@ -69,7 +71,7 @@ var defaultBarChartOptions = {
 
     legend: {
         position: 'none'
-    },
+    }
 };
 
 var defaultComboChartOptions = {
@@ -127,7 +129,7 @@ var defaultColumnChartOptions = {
     },
     legend: {
         position: 'none'
-    },
+    }
 };
 
 var defaultStackedColumnChartOptions = {
diff --git a/public/js/help.js b/public/js/help.js
index cfe25448b4..d4762b43e8 100644
--- a/public/js/help.js
+++ b/public/js/help.js
@@ -1,13 +1,16 @@
 $(function () {
+    "use strict";
     $('#help').click(showHelp);
     $(function () {
-        $('[data-toggle="tooltip"]').tooltip()
-    })
+
+        $('[data-toggle="tooltip"]').tooltip();
+    });
 });
 
 function showHelp(e) {
-    target = $(e.target);
-    route = target.data('route');
+    "use strict";
+    var target = $(e.target);
+    var route = target.data('route');
     //
     $('#helpBody').html('<i class="fa fa-refresh fa-spin"></i>');
     $('#helpTitle').html('Please hold...');
diff --git a/public/js/index.js b/public/js/index.js
index ec5579ee23..d1291a77a4 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -1,3 +1,4 @@
+/* globals google */
 google.setOnLoadCallback(drawChart);
 
 
@@ -12,13 +13,20 @@ function drawChart() {
 }
 
 function getBoxAmounts() {
+    "use strict";
     var boxes = ['in', 'out', 'bills-unpaid', 'bills-paid'];
-    for (x in boxes) {
+    for (var x in boxes) {
         var box = boxes[x];
-        $.getJSON('/json/box/' + box).success(function (data) {
-            $('#box-' + data.box).html(data.amount);
-        }).fail(function () {
-            console.log('Failed to get box!')
-        });
+        $.getJSON('/json/box/' + box).success(putData).fail(failData);
     }
 }
+
+function putData(data) {
+    "use strict";
+    $('#box-' + data.box).html(data.amount);
+}
+
+function failData() {
+    "use strict";
+    console.log('Failed to get box!');
+}
\ No newline at end of file
diff --git a/public/js/piggy-banks.js b/public/js/piggy-banks.js
index cefb43d0f6..d34bf49760 100644
--- a/public/js/piggy-banks.js
+++ b/public/js/piggy-banks.js
@@ -1,3 +1,14 @@
+// Return a helper with preserved width of cells
+var fixHelper = function(e, tr) {
+    var $originals = tr.children();
+    var $helper = tr.clone();
+    $helper.children().each(function (index) {
+        // Set helper cell sizes to match the original sizes
+        $(this).width($originals.eq(index).width());
+    });
+    return $helper;
+};
+
 $(function () {
     $('.addMoney').on('click', addMoney);
     $('.removeMoney').on('click', removeMoney);
@@ -31,16 +42,7 @@ $(function () {
     );
 });
 
-// Return a helper with preserved width of cells
-var fixHelper = function(e, tr) {
-    var $originals = tr.children();
-    var $helper = tr.clone();
-    $helper.children().each(function (index) {
-        // Set helper cell sizes to match the original sizes
-        $(this).width($originals.eq(index).width());
-    });
-    return $helper;
-}
+
 
 function addMoney(e) {
     var pigID = parseInt($(e.target).data('id'));
diff --git a/public/js/reports.js b/public/js/reports.js
index 0517d4951d..dfcbee44a1 100644
--- a/public/js/reports.js
+++ b/public/js/reports.js
@@ -1,4 +1,4 @@
-if (typeof(google) != 'undefined') {
+if (typeof(google) !== 'undefined') {
     google.setOnLoadCallback(drawChart);
 }
 
diff --git a/public/js/transactions.js b/public/js/transactions.js
index 20e7b6eaee..446bde7043 100644
--- a/public/js/transactions.js
+++ b/public/js/transactions.js
@@ -28,7 +28,7 @@ $(document).ready(function () {
         });
     }
 
-    if ($('input[name="description"]').length > 0 && what != undefined) {
+    if ($('input[name="description"]').length > 0 && what !== undefined) {
         $.getJSON('json/transaction-journals/' + what).success(function (data) {
             $('input[name="description"]').typeahead({source: data});
         });