diff --git a/js/uhr.js b/js/uhr.js
index 485d815..7e638a1 100644
--- a/js/uhr.js
+++ b/js/uhr.js
@@ -1,19 +1,19 @@
 /*
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 (function ($) {
-	'use strict';
+    'use strict';
     var uhrGlobals = {
         "id": 0,
         "languages": [],
@@ -33,7 +33,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         }
     };
 
-	// auto-detect themes
+    // auto-detect themes
     $('link[rel=stylesheet]').each(function (index, item) {
         var styleSheet = $(item);
         var styleClass = styleSheet.attr('data-class');
@@ -45,10 +45,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
             uhrGlobals.themes.push({'styleClass': styleClass, 'name': name});
         }
     });
-	// fall-back if no theme was included
-	if (uhrGlobals.themes.length === 0) {
-		uhrGlobals.themes.push({});
-	}
+    // fall-back if no theme was included
+    if (uhrGlobals.themes.length === 0) {
+        uhrGlobals.themes.push({});
+    }
 
     // public interface methods (exported later)
     var start = function start() {
@@ -339,13 +339,13 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         "_create": create
     });
     $.fritteli.uhr.register = uhrGlobals.registerLanguage;
-	/**
-	 * Hilfsklasse zum Rendern der Uhr.
-	 * @param layout     Layout-Objekt, das gerendert werden soll.
-	 * @param renderarea Das jQuery-gewrappte HTML-Element, auf dem gerendert werden soll.
-	 */
-	function UhrRenderer(layout, renderarea) {
-        this.render  = function render(uhr, beforeshow) {
+    /**
+     * Hilfsklasse zum Rendern der Uhr.
+     * @param layout     Layout-Objekt, das gerendert werden soll.
+     * @param renderarea Das jQuery-gewrappte HTML-Element, auf dem gerendert werden soll.
+     */
+    function UhrRenderer(layout, renderarea) {
+        this.render = function render(uhr, beforeshow) {
             if (layout.parsed === undefined) {
                 switch (layout.version) {
                     case 2:
@@ -376,16 +376,18 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
             });
         };
     }
-	function UhrRendererV2Delegate(layout) {
-		function parseArrayOrObject(letters, styleClass, input) {
-			if (Array.isArray(input)) {
+
+    function UhrRendererV2Delegate(layout) {
+        function parseArrayOrObject(letters, styleClass, input) {
+            if (Array.isArray(input)) {
                 input.forEach(function (item) {
                     parseObject(letters, styleClass, item);
                 });
-			} else {
-				parseObject(letters, styleClass, input);
-			}
-		}
+            } else {
+                parseObject(letters, styleClass, input);
+            }
+        }
+
         function parseObject(letters, styleClass, object) {
             Object.keys(object).forEach(function (y) {
                 var highlightLetters = object[y];
@@ -394,7 +396,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
                 });
             });
         }
-		function parseTimeDefinition(letters, styleClass, definition) {
+
+        function parseTimeDefinition(letters, styleClass, definition) {
             Object.keys(definition).forEach(function (listString) {
                 var array = listString.split(',');
                 var highlightLetters = definition[listString];
@@ -402,7 +405,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
                     parseArrayOrObject(letters, styleClass + item, highlightLetters);
                 });
             });
-		}
+        }
+
         this.parse = function parse() {
             var letters = [];
             layout.letters.forEach(function (string) {
@@ -418,13 +422,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
             parseTimeDefinition(letters, 'hour', layout.hours);
             return letters;
         };
-	}
-	/**
-	 * Ein Buchstabe. Hilfsklasse für den Renderer und Inhalt der Layout-Arrays.
-	 * @param value Der Buchstabe, der Dargestellt werden soll.
-	 * @param style Die CSS-Styleklassen des Buchstabens.
-	 */
-	function Letter(value, style) {
+    }
+
+    /**
+     * Ein Buchstabe. Hilfsklasse für den Renderer und Inhalt der Layout-Arrays.
+     * @param value Der Buchstabe, der Dargestellt werden soll.
+     * @param style Die CSS-Styleklassen des Buchstabens.
+     */
+    function Letter(value, style) {
         var myValue = value;
         var myStyle = style || '';
         this.addStyle = function (style) {
@@ -437,5 +442,5 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
         this.toString = function () {
             return '<span class="item letter ' + myStyle + '">' + myValue + '</span>';
         };
-	}
+    }
 })(jQuery);
\ No newline at end of file