diff --git a/www/themes/new/css/datatables_custom.css b/www/themes/new/css/datatables_custom.css
index fa50a08c5..659fa7184 100644
--- a/www/themes/new/css/datatables_custom.css
+++ b/www/themes/new/css/datatables_custom.css
@@ -495,3 +495,49 @@
     color: #DDD;
     background-color: #222;
 }
+
+/* Highlight rows that are marked via the checkbox column */
+table.dataTable tbody tr.row-marked,
+table.display tbody tr.row-marked {
+    background-color: #e8f2ff !important;
+}
+
+table.dataTable tbody tr.row-marked td,
+table.display tbody tr.row-marked td {
+    background-color: #e8f2ff !important;
+}
+
+/* Zebra striping for table readability:
+ *   - every 2nd row: very light blue tint  (tr.even = rows 2,4,6,...)
+ *   - every 4th row: a touch deeper        (tr.even at nth-child(4n) = rows 4,8,12,...)
+ *
+ * Selector matches the OpenXE styles.css rule
+ *   ".dataTables_wrapper table.dataTable.display > tbody > tr > td"
+ * exactly to win the specificity battle (3 classes + 2 combinators, plus
+ * .even adds another class -> beats the white-background rule). DataTables
+ * sets class="odd"/"even" on each tr via JS, so we use that directly
+ * instead of pure nth-child which the cascade overrides.
+ *
+ * Markierte Zeilen (.row-marked) werden ueber :not(.row-marked) explizit
+ * vom Striping ausgeschlossen -- ohne diesen Filter wuerde die Stripe-
+ * Regel mit hoeherer Spezifitaet (0,4,4 bzw. 0,5,4) den .row-marked-
+ * Highlight (0,2,4) gewinnen, obwohl beide !important nutzen. */
+.dataTables_wrapper table.dataTable.display > tbody > tr.even:not(.row-marked) > td {
+    background-color: #f7f9fb !important;
+}
+
+.dataTables_wrapper table.dataTable.display > tbody > tr.even:nth-child(4n):not(.row-marked) > td {
+    background-color: #eef3f8 !important;
+}
+
+/* DataTables faerbt die aktuell sortierte Spalte (td.sorting_1/_2/_3) mit
+ * eigener Spezifitaet (0,4,4). In markierten Zeilen wuerde diese Regel
+ * sonst sichtbar bleiben und einen "doppelten Hintergrund" erzeugen
+ * (sortierte Spalte hat andere Farbe als der Rest der Row). Override mit
+ * explizitem Wrapper-Pfad (Spezifitaet 0,5,4) erzwingt einheitlichen
+ * Highlight ueber alle Spalten der markierten Zeile. */
+.dataTables_wrapper table.dataTable.display > tbody > tr.row-marked > td.sorting_1,
+.dataTables_wrapper table.dataTable.display > tbody > tr.row-marked > td.sorting_2,
+.dataTables_wrapper table.dataTable.display > tbody > tr.row-marked > td.sorting_3 {
+    background-color: #e8f2ff !important;
+}
diff --git a/www/themes/new/js/scripts.js b/www/themes/new/js/scripts.js
index 22a3f86c2..1a5d590e2 100644
--- a/www/themes/new/js/scripts.js
+++ b/www/themes/new/js/scripts.js
@@ -133,9 +133,76 @@ $(function() {
 	   $("body").css("overflow", "visible");
     }); 
 
-    
-});
+    /* Toggle background for rows that are marked via checkboxes */
+    var markedRowTableIds = [
+        "angebote",
+        "angeboteinbearbeitung",
+        "auftraege",
+        "auftraegeoffene",
+        "auftraegeoffeneauto",
+        "auftraegeinbearbeitung",
+        "rechnungen",
+        "rechnungenoffene",
+        "rechnungeninbearbeitung",
+        "lieferscheine",
+        "lieferscheineoffene",
+        "lieferscheineinbearbeitung",
+        "mahnwesen_list"
+    ];
+
+    function markSelectedRows($table) {
+        $table.find("tbody tr").each(function(){
+            var $row = $(this);
+            var isChecked = $row.find('input[type="checkbox"]:checked').length > 0;
+            $row.toggleClass("row-marked", isChecked);
+        });
+    }
+
+    function isMarkedTable($table){
+        var id = $table.attr("id");
+        return id && markedRowTableIds.indexOf(id) !== -1;
+    }
+
+    function bindMarkedRowHighlight(selector) {
+        var $table = selector instanceof jQuery ? selector : $(selector);
+
+        if(!$table.length || !isMarkedTable($table)){
+            return;
+        }
+
+        if($table.data("rowMarkedBound")){
+            markSelectedRows($table);
+            return;
+        }
+
+        $table.data("rowMarkedBound", true);
+
+        var refresh = function(){
+            markSelectedRows($table);
+        };
+
+        $table.on("change", "tbody input[type=\"checkbox\"]", refresh);
+        $table.on("draw.dt", refresh);
+        refresh();
+    }
+
+    function refreshMarkedRowTables(){
+        markedRowTableIds.forEach(function(id){
+            bindMarkedRowHighlight("#" + id);
+        });
+    }
+
+    refreshMarkedRowTables();
+
+    $(document).on("init.dt", function(e, settings){
+        bindMarkedRowHighlight($(settings.nTable));
+    });
 
+    $(document).on("change", "#auswahlalle", function(){
+        window.setTimeout(refreshMarkedRowTables, 0);
+    });
 
+    
+});