--- a/app/controller/Filter.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/Filter.js	Thu Apr 23 16:28:04 2015 +0200
@@ -24,6 +24,10 @@
 
     displayFields: null,
 
+    /**
+     * Initialize this Controller
+     * It has 4 Listeners
+     */
     init: function() {
         this.control({
             // CSS like selector to select element in the viewport. See
@@ -72,25 +76,26 @@
         // Setup Columns of the probenlist
         this.displayFields.reverse();
 
-        // Setup Filters of the probenlist
-        //
-        // Allowed types are
-        // * text
-        // * number
-        // * datetime
-        // * bool
-        // * listmst
-        // * listumw
-        // * listver
-        // * listdbasis
-        // * listnetz
-        //
-        // Iterate over all configured filters and add filters dynamically
-        //
-        // 1. Empty filters
+        /* Setup Filters of the probenlist
+         *
+         * Allowed types are
+         * * text
+         * * number
+         * * datetime
+         * * bool
+         * * listmst
+         * * listumw
+         * * listver
+         * * listdbasis
+         * * listnetz
+         *
+         * Iterate over all configured filters and add filters dynamically
+         *
+         *  1. Empty filters
+         */
         filters.removeAll();
         var hide = true;
-        // 2. Iterate over all configured filters
+        /* 2. Iterate over all configured filters */
         var j;
         for (j = 0; j < filterFields.length; j++) {
             var type = filterFields[j].type;
@@ -202,7 +207,9 @@
         resultGrid.getStore().load();
         resultGrid.show();
     },
-
+    /**
+     * This function resets the filters
+     */
     reset: function(element) {
         var filters = element.up('panel[name=main]').down('fieldset[name=filtervariables]');
         for (var i = filters.items.length - 1; i >= 0; i--) {
@@ -210,7 +217,10 @@
             filter.clearValue();
         }
     },
-
+    /**
+     * This Function is supposed to handle the About action
+     * It has no function yet.
+     */
     about: function() {
         var info = this.getInfoStore();
         Ext.widget('about', {

--- a/app/controller/FilterResult.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/FilterResult.js	Thu Apr 23 16:28:04 2015 +0200
@@ -15,6 +15,9 @@
         'Lada.view.window.ProbeEdit'
     ],
 
+    /**
+     * Initialize the Controller with 4 listeners
+     */
     init: function() {
         this.control({
             'filterresultgrid': {
@@ -33,6 +36,12 @@
         this.callParent(arguments);
     },
 
+    /**
+     * This function is called after a Row in the
+     * {@link Lada.view.grid.FilterResult}
+     * was double-clicked.
+     * The function opens a {@link Lada.view.window.ProbeEdit}
+     */
     editItem: function(grid, record) {
         var win = Ext.create('Lada.view.window.ProbeEdit', {
             record: record
@@ -41,12 +50,20 @@
         win.initData();
     },
 
+    /**
+     * This function opens a new window to create a Probe
+     * {@link Lada.view.window.ProbeEdit}
+     */
     addItem: function() {
         var win = Ext.create('Lada.view.window.ProbeCreate');
         win.show();
         win.initData();
     },
 
+    /**
+     * This function opens a {@link Lada.view.window.FileUpload}
+     * window to upload a LAF-File
+     */
     uploadFile: function() {
         var win = Ext.create('Lada.view.window.FileUpload', {
             title: 'Datenimport',
@@ -56,6 +73,11 @@
         win.show();
     },
 
+    /**
+     * This function can be used to Download the items which
+     * were selected in the {@link Lada.view.grid.FilterResult}
+     * The Download does not work with Internet Explorers older than v.10
+     */
     downloadFile: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection();

--- a/app/controller/Map.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/Map.js	Thu Apr 23 16:28:04 2015 +0200
@@ -7,6 +7,8 @@
  */
 
 /**
+ * This is a controller for a Map.
+ * Maps are used in the Ortsangaben of a Probe.
  */
 Ext.define('Lada.controller.Map', {
     extend: 'Ext.app.Controller',
@@ -14,6 +16,10 @@
     requires: [
     ],
 
+    /**
+     * Initialize the Controller
+     * It has only one listener.
+     */
     init: function() {
         this.control({
             'maptoolbar button[action=add]': {
@@ -23,6 +29,12 @@
         this.callParent(arguments);
     },
 
+    /**
+     * addLocation is a function which can be
+     * used to add an location to create a new Location
+     * with the help of the map.
+     * The function uses {@link Lada.view.panel.Map#activateDraw}
+     */
     addLocation: function(button) {
         var mapPanel = button.up('map');
         var details = button.up('window').down('locationform');

--- a/app/controller/form/Location.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/form/Location.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,9 +6,15 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * This is a Controller for a Location Form
+ */
 Ext.define('Lada.controller.form.Location', {
     extend: 'Ext.app.Controller',
-
+    /**
+     * Initialize the Controller with
+     * 5 listeners
+     */
     init: function() {
         this.control({
             'locationform button[action=save]': {
@@ -29,6 +35,11 @@
         });
     },
 
+    /**
+     * The save function saves the content of the Location form.
+     * On success it will reload the Store,
+     * on failure, it will display an Errormessage
+     */
     save: function(button) {
         var formPanel = button.up('form');
         var data = formPanel.getForm().getFieldValues(true);
@@ -81,12 +92,22 @@
         });
     },
 
+    /**
+     * The discard function resets the Location form
+     * to its original state.
+     */
     discard: function(button) {
         var formPanel = button.up('form');
         formPanel.getForm().loadRecord(formPanel.getForm().getRecord());
         button.up('window').down('map').locationRecord = null;
     },
 
+    /**
+     * The dirtyForm function enables or disables the save and discard
+     * button which are present in the toolbar of the form.
+     * The Buttons are only active if the content of the form was altered
+     * (the form is dirty).
+     */
     dirtyForm: function(form, dirty) {
         if (dirty) {
             form.owner.down('button[action=save]').setDisabled(false);
@@ -98,6 +119,12 @@
         }
     },
 
+    /**
+     * This function updates the Latitude (heigth-value / y-value) of a feature
+     * (geospatial object). The feature can be a marker in the map
+     * @param {Ext.form.field.Field} field the Ext.field which was altered
+     * @param {} nValue the new Latitude as WGS84 in decimaldegrees
+     */
     updateFeatureLatitude: function(field, nValue) {
         var layer = field.up('window').down('map').selectControl.layer;
         var newLocation = field.up('window').down('map').locationRecord;
@@ -108,6 +135,12 @@
         }
     },
 
+    /**
+     * This function updates the Longitude (right-value / x-value) of a feature
+     * (geospatial object). The feature can be a marker in the map
+     * @param {Ext.form.field.Field} field the Ext.field which was altered
+     * @param {} nValue the new Longitude as WGS84 in decimaldegrees
+     */
     updateFeatureLongitude: function(field, nValue) {
         var layer = field.up('window').down('map').selectControl.layer;
         var newLocation = field.up('window').down('map').locationRecord;

--- a/app/controller/form/Messung.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/form/Messung.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,9 +6,16 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * This is a controller for a Messung form
+ */
 Ext.define('Lada.controller.form.Messung', {
     extend: 'Ext.app.Controller',
 
+    /**
+     * Initialize the Controller
+     * It has 3 listeners
+     */
     init: function() {
         this.control({
             'messungform button[action=save]': {
@@ -23,6 +30,11 @@
         });
     },
 
+    /**
+     * The save function saves the content of the Location form.
+     * On success it will reload the Store,
+     * on failure, it will display an Errormessage
+     */
     save: function(button) {
         var formPanel = button.up('form');
         formPanel.setLoading(true);
@@ -95,12 +107,25 @@
         });
     },
 
-    discard: function(button) {
+     /**
+      * The discard function resets the Location form
+      * to its original state.
+      */
+     discard: function(button) {
         var formPanel = button.up('form');
         formPanel.getForm().loadRecord(formPanel.getForm().getRecord());
     },
 
-    dirtyForm: function(form, dirty) {
+     /**
+      * The dirtyForm function enables or disables the save and discard
+      * button which are present in the toolbar of the form.
+      * The Buttons are only active if the content of the form was altered
+      * (the form is dirty).
+      * In Additon it calls the disableChildren() function of the window
+      * embedding the form. Only when the record does not carry the readonly
+      * flag, the function calls the embedding windows enableChilren() function
+      */
+     dirtyForm: function(form, dirty) {
         if (dirty) {
             form.owner.down('button[action=save]').setDisabled(false);
             form.owner.down('button[action=discard]').setDisabled(false);

--- a/app/controller/form/Ort.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/form/Ort.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,9 +6,15 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/*
+ * This is a controller for an Ort Form
+ */
 Ext.define('Lada.controller.form.Ort', {
     extend: 'Ext.app.Controller',
 
+    /**
+     * Initialize the Controller with 4 listeners
+     */
     init: function() {
         this.control({
             'ortform button[action=save]': {
@@ -26,7 +32,12 @@
         });
     },
 
-    save: function(button) {
+     /**
+      * The save function saves the content of the Location form.
+      * On success it will reload the Store,
+      * on failure, it will display an Errormessage
+      */
+     save: function(button) {
         var formPanel = button.up('ortform');
         var data = formPanel.getForm().getFieldValues(true);
         for (var key in data) {
@@ -72,7 +83,11 @@
         });
     },
 
-    discard: function(button) {
+   /**
+    * The discard function resets the Location form
+    * to its original state.
+    */
+   discard: function(button) {
         var formPanel = button.up('form');
         formPanel.getForm().loadRecord(formPanel.getForm().getRecord());
         var win = button.up('window');
@@ -82,6 +97,12 @@
         win.down('map').selectFeature(id);
     },
 
+     /**
+      * The dirtyForm function enables or disables the save and discard
+      * button which are present in the toolbar of the form.
+      * The Buttons are only active if the content of the form was altered
+      * (the form is dirty).
+      */
     dirtyForm: function(form, dirty) {
         if (dirty) {
             form.owner.down('button[action=save]').setDisabled(false);
@@ -93,6 +114,11 @@
         }
     },
 
+    /**
+     *  updateDetails is used when a value is selected within the ort combobox
+     *  When this function is called, the map element within the window
+     *  which is embedding this form is updated.
+     */
     updateDetails: function(combobox, record) {
         var win = combobox.up('window');
         var details = win.down('locationform');

--- a/app/controller/form/Probe.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/form/Probe.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,9 +6,16 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * A Controller for a Probe form
+ */
 Ext.define('Lada.controller.form.Probe', {
     extend: 'Ext.app.Controller',
 
+    /**
+     * Initialize the Controller
+     * It has 4 listeners
+     */
     init: function() {
         this.control({
             'probeform button[action=save]': {
@@ -26,6 +33,11 @@
         });
     },
 
+    /**
+     * The save function saves the content of the Location form.
+     * On success it will reload the Store,
+     * on failure, it will display an Errormessage
+     */
     save: function(button) {
         var formPanel = button.up('form');
         var data = formPanel.getForm().getFieldValues(true);
@@ -85,11 +97,24 @@
         });
     },
 
+     /**
+      * The discard function resets the Location form
+      * to its original state.
+      */
     discard: function(button) {
         var formPanel = button.up('form');
         formPanel.getForm().loadRecord(formPanel.getForm().getRecord());
     },
 
+     /**
+      * The dirtyForm function enables or disables the save and discard
+      * button which are present in the toolbar of the form.
+      * The Buttons are only active if the content of the form was altered
+      * (the form is dirty).
+      * In Additon it calls the disableChildren() function of the window
+      * embedding the form. Likewise it calls the embedding windows
+      * enableChilren() function
+      */
     dirtyForm: function(form, dirty) {
         if (dirty) {
             form.owner.down('button[action=save]').setDisabled(false);
@@ -103,6 +128,13 @@
         }
     },
 
+    /**
+     * checkDate() is called when a xtype=datetime field was modified
+     * It checks for two things:
+     *  - Is the date in the future
+     *  - Does the date belong to a time period and the end is before start
+     * In both cases it adds a warning to the field which was checked.
+     */
     checkDate: function(field) {
         var now = Date.now();
         var w = 0 //amount of warnings

--- a/app/controller/grid/MKommentar.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/grid/MKommentar.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,9 +6,18 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * This is a controller for a grid of MKommentar
+ * MKommentar are comments which are associated to a
+ * Measurement
+ */
 Ext.define('Lada.controller.grid.MKommentar', {
     extend: 'Ext.app.Controller',
 
+    /**
+     * Inhitialize the controller
+     * It has 3 listeners
+     */
     init: function() {
         this.control({
             'mkommentargrid': {
@@ -24,6 +33,12 @@
         });
     },
 
+    /**
+     * This function is called when the grids roweditor saves
+     * the record.
+     * On success it refreshes the windows which contains the grid
+     * On failure it displays a message
+     */
     gridSave: function(editor, context) {
         context.record.save({
             success: function(record, response) {
@@ -46,6 +61,10 @@
         });
     },
 
+    /**
+     * When the edit was canceled,
+     * the empty row might have been created by the roweditor is removed
+     */
     cancelEdit: function(editor, context) {
         if (!context.record.get('id') ||
             context.record.get('id') === '') {
@@ -53,6 +72,9 @@
         }
     },
 
+    /**
+     * This function adds a new row to add a MKommentar
+     */
     add: function(button) {
         var record = Ext.create('Lada.model.MKommentar');
         record.set('messungsId', button.up('mkommentargrid').recordId);
@@ -60,6 +82,12 @@
         button.up('mkommentargrid').rowEditing.startEdit(0, 1);
     },
 
+    /**
+     * A Mkommentar-row can be removed from the grid with the remove
+     * function. It asks the user for confirmation
+     * If the removal was confirmed, it reloads the parent window on success,
+     * on failure, an error message is shown.
+     */
     remove: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection()[0];

--- a/app/controller/grid/Messung.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/grid/Messung.js	Thu Apr 23 16:28:04 2015 +0200
@@ -16,6 +16,10 @@
         'Lada.view.window.MessungEdit'
     ],
 
+    /**
+     * Inhitialize the controller
+     * It has 3 listeners
+     */
     init: function() {
         this.control({
             'messunggrid': {
@@ -30,6 +34,10 @@
         });
     },
 
+    /**
+     * This function opens a new {@link Lada.view.window.MessungEdit}
+     * Window.
+     */
     editItem: function(grid, record) {
         var probe = grid.up('window').record;
         var win = Ext.create('Lada.view.window.MessungEdit', {
@@ -42,6 +50,9 @@
         win.initData();
     },
 
+    /**
+     * This function opens a window add a Messung
+     */
     add: function(button) {
         var probe = button.up('window').record;
         var win = Ext.create('Lada.view.window.MessungCreate', {
@@ -52,6 +63,13 @@
         win.initData();
     },
 
+    /**
+     * This function removes a Messung
+     * It displays a Confirmation-Popup.
+     * When the Removal was confirmed and the operation was successful,
+     * the Messung-row is removed from the grid.
+     * On failure an Errormessage is shown
+     */
     remove: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection()[0];

--- a/app/controller/grid/Messwert.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/grid/Messwert.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,10 +6,17 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * This is a Controller for a Messwert Grid
+ */
 Ext.define('Lada.controller.grid.Messwert', {
     extend: 'Ext.app.Controller',
 
-    init: function() {
+    /**
+     * Inhitialize the controller
+     * It has 3 listeners
+     */
+     init: function() {
         this.control({
             'messwertgrid': {
                 edit: this.gridSave,
@@ -24,6 +31,12 @@
         });
     },
 
+    /**
+     * This function is called when the grids roweditor saves
+     * the record.
+     * On success it refreshes the windows which contains the grid
+     * On failure it displays a message
+     */
     gridSave: function(editor, context) {
         context.record.save({
             success: function(request, response) {
@@ -59,6 +72,10 @@
         });
     },
 
+    /**
+     * When the edit was canceled,
+     * the empty row might have been created by the roweditor is removed
+     */
     cancelEdit: function(editor, context) {
         if (!context.record.get('id') ||
             context.record.get('id') === '') {
@@ -66,6 +83,9 @@
         }
     },
 
+    /**
+     * This function adds a new row to add a Messwert
+     */
     add: function(button) {
         var record = Ext.create('Lada.model.Messwert', {
             messungsId: button.up('messwertgrid').recordId
@@ -74,7 +94,13 @@
         button.up('messwertgrid').rowEditing.startEdit(0, 1);
     },
 
-    remove: function(button) {
+    /**
+     * A Messwert-row can be removed from the grid with the remove
+     * function. It asks the user for confirmation
+     * If the removal was confirmed, it reloads the parent window on success,
+     * on failure, an error message is shown.
+     */
+     remove: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection()[0];
         Ext.MessageBox.confirm('Messwert löschen', 'Sind Sie sicher?', function(btn) {

--- a/app/controller/grid/Ort.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/grid/Ort.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,6 +6,9 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * This is a controller for a grid of Orte
+ */
 Ext.define('Lada.controller.grid.Ort', {
     extend: 'Ext.app.Controller',
 
@@ -14,6 +17,10 @@
         'Lada.view.window.OrtCreate'
     ],
 
+    /**
+     * Inhitialize the controller
+     * It has 3 listeners
+     */
     init: function() {
         this.control({
             'ortgrid': {
@@ -28,6 +35,10 @@
         });
     },
 
+    /**
+     * When open is called, a {@link Lada.view.window.OrtEdit}
+     * is created which allows to edit the Orte
+     */
     open: function(grid, record) {
         var probe = grid.up('window').record;
         var win = Ext.create('Lada.view.window.OrtEdit', {
@@ -40,6 +51,9 @@
         win.initData();
     },
 
+    /**
+     * This function adds a new row to add an Ort
+     */
     add: function(button) {
         var probe = button.up('window').record;
         var win = Ext.create('Lada.view.window.OrtCreate', {
@@ -50,6 +64,12 @@
         win.initData();
     },
 
+    /**
+     * A Ort-row can be removed from the grid with the remove
+     * function. It asks the user for confirmation
+     * If the removal was confirmed, it reloads the parent window on success,
+     * on failure, an error message is shown.
+     */
     remove: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection()[0];

--- a/app/controller/grid/PKommentar.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/grid/PKommentar.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,9 +6,16 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
-Ext.define('Lada.controller.grid.PKommentar', {
+/**
+ * This is a controller for a grid of Orte
+ */
+EExt.define('Lada.controller.grid.PKommentar', {
     extend: 'Ext.app.Controller',
 
+    /**
+     * Initialize the Controller with
+     * 3 Listeners
+     */
     init: function() {
         this.control({
             'pkommentargrid': {
@@ -24,7 +31,13 @@
         });
     },
 
-    gridSave: function(editor, context) {
+    /**
+     * This function is called when the grids roweditor saves
+     * the record.
+     * On success it refreshes the windows which contains the grid
+     * On failure it displays a message
+     */
+     gridSave: function(editor, context) {
         context.record.save({
             success: function() {
                 context.grid.store.reload();
@@ -49,21 +62,34 @@
         });
     },
 
-    cancelEdit: function(editor, context) {
+    /**
+     * When the edit was canceled,
+     * the empty row might have been created by the roweditor is removed
+     */
+     cancelEdit: function(editor, context) {
         if (!context.record.get('id') ||
             context.record.get('id') === '') {
             editor.getCmp().store.remove(context.record);
         }
     },
 
-    add: function(button) {
+    /**
+     * This function adds a new row to add a PKommentar
+     */
+     add: function(button) {
         var record = Ext.create('Lada.model.PKommentar');
         record.set('probeId', button.up('pkommentargrid').recordId);
         button.up('pkommentargrid').store.insert(0, record);
         button.up('pkommentargrid').rowEditing.startEdit(0, 1);
     },
 
-    remove: function(button) {
+    /**
+     * A PKommentar-row can be removed from the grid with the remove
+     * function. It asks the user for confirmation
+     * If the removal was confirmed, it reloads the parent window on success,
+     * on failure, an error message is shown.
+     */
+     remove: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection()[0];
         Ext.MessageBox.confirm('Löschen', 'Sind Sie sicher?', function(btn) {

--- a/app/controller/grid/Probenzusatzwert.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/grid/Probenzusatzwert.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,10 +6,17 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * This is a controller for a grid of Probenzusatzwert
+ */
 Ext.define('Lada.controller.grid.Probenzusatzwert', {
     extend: 'Ext.app.Controller',
 
-    init: function() {
+    /**
+     * Initialize the Controller with
+     * 3 Listeners
+     */
+     init: function() {
         this.control({
             'probenzusatzwertgrid': {
                 edit: this.gridSave,
@@ -24,7 +31,13 @@
         });
     },
 
-    gridSave: function(editor, context) {
+    /**
+     * This function is called when the grids roweditor saves
+     * the record.
+     * On success it refreshes the windows which contains the grid
+     * On failure it displays a message
+     */
+     gridSave: function(editor, context) {
         context.record.save({
             success: function() {
                 context.grid.store.reload();
@@ -49,14 +62,21 @@
         });
     },
 
-    cancelEdit: function(editor, context) {
+    /**
+     * When the edit was canceled,
+     * the empty row might have been created by the roweditor is removed
+     */
+     cancelEdit: function(editor, context) {
         if (!context.record.get('id') ||
             context.record.get('id') === '') {
             editor.getCmp().store.remove(context.record);
         }
     },
 
-    add: function(button) {
+    /**
+     * This function adds a new row to add a Probenzusatzwert
+     */
+     add: function(button) {
         var record = Ext.create('Lada.model.Zusatzwert', {
             probeId: button.up('probenzusatzwertgrid').recordId
         });
@@ -64,7 +84,13 @@
         button.up('probenzusatzwertgrid').rowEditing.startEdit(0, 1);
     },
 
-    remove: function(button) {
+    /**
+     * A row can be removed from the grid with the remove
+     * function. It asks the user for confirmation
+     * If the removal was confirmed, it reloads the parent window on success,
+     * on failure, an error message is shown.
+     */
+     remove: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection()[0];
         Ext.MessageBox.confirm('Zusatzwert löschen', 'Sind Sie sicher?', function(btn) {

--- a/app/controller/grid/Status.js	Mon Apr 20 16:07:40 2015 +0200
+++ b/app/controller/grid/Status.js	Thu Apr 23 16:28:04 2015 +0200
@@ -6,10 +6,17 @@
  * the documentation coming with IMIS-Labordaten-Application for details.
  */
 
+/**
+ * This is a controller for a grid of Status
+ */
 Ext.define('Lada.controller.grid.Status', {
     extend: 'Ext.app.Controller',
 
-    init: function() {
+    /**
+     * Initialize the Controller with
+     * 3 Listeners
+     */
+     init: function() {
         this.control({
             'statusgrid': {
                 edit: this.gridSave,
@@ -24,7 +31,13 @@
         });
     },
 
-    gridSave: function(editor, context) {
+    /**
+     * This function is called when the grids roweditor saves
+     * the record.
+     * On success it refreshes the windows which contains the grid
+     * On failure it displays a message
+     */
+     gridSave: function(editor, context) {
         context.record.save({
             success: function() {
                 context.grid.initData();
@@ -49,14 +62,21 @@
         });
     },
 
-    cancelEdit: function(editor, context) {
+    /**
+     * When the edit was canceled,
+     * the empty row might have been created by the roweditor is removed
+     */
+     cancelEdit: function(editor, context) {
         if (!context.record.get('id') ||
             context.record.get('id') === '') {
             editor.getCmp().store.remove(context.record);
         }
     },
 
-    add: function(button) {
+    /**
+     * This function adds a new row to add a Status
+     */
+     add: function(button) {
         var record = Ext.create('Lada.model.Status', {
             messungsId: button.up('statusgrid').recordId
         });
@@ -64,7 +84,13 @@
         button.up('statusgrid').rowEditing.startEdit(0, 1);
     },
 
-    remove: function(button) {
+    /**
+     * A row can be removed from the grid with the remove
+     * function. It asks the user for confirmation
+     * If the removal was confirmed, it reloads the parent window on success,
+     * on failure, an error message is shown.
+     */
+     remove: function(button) {
         var grid = button.up('grid');
         var selection = grid.getView().getSelectionModel().getSelection()[0];
         Ext.MessageBox.confirm('Messwert löschen', 'Sind Sie sicher?', function(btn) {