diff --git a/koha-tmpl/intranet-tmpl/prog/en/includes/additem.js.inc b/koha-tmpl/intranet-tmpl/prog/en/includes/additem.js.inc
index 5ab37f440b..28d39e4b04 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/includes/additem.js.inc
+++ b/koha-tmpl/intranet-tmpl/prog/en/includes/additem.js.inc
@@ -1,5 +1,7 @@
 <script type="text/javascript">
 //<![CDATA[
+var MSG_ADDITEM_JS_ADDITEM = _("Add item");
+var MSG_ADDITEM_JS_UPDATEITEM = _("Update item");
 var MSG_ADDITEM_JS_EDIT = _("Edit");
 var MSG_ADDITEM_JS_DELETE = _("Delete");
 var MSG_ADDITEM_JS_CLEAR = _("Clear");
diff --git a/koha-tmpl/intranet-tmpl/prog/en/js/additem.js b/koha-tmpl/intranet-tmpl/prog/en/js/additem.js
index 1cea43781d..aa19155925 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/js/additem.js
+++ b/koha-tmpl/intranet-tmpl/prog/en/js/additem.js
@@ -12,7 +12,7 @@ function addItem( node, unique_item_fields ) {
             if ( current_qty < max_qty - 1 )
                 cloneItemBlock(index, unique_item_fields);
             addItemInList(index, unique_item_fields);
-            $("#" + index).find("input[name='buttonPlus']").val("Update");
+            $("#" + index).find("input[name='buttonPlus']").val( (window.MSG_ADDITEM_JS_UPDATEITEM || "Update item") );
             $("#quantity").val(current_qty + 1).change();
         } else if ( current_qty >= max_qty ) {
             alert(window.MSG_ADDITEM_JS_CANT_RECEIVE_MORE_ITEMS
@@ -135,8 +135,7 @@ function cloneItemBlock(index, unique_item_fields) {
             });
             /* Add buttons + and Clear */
             var buttonPlus = "<fieldset class=\"action\">";
-            var buttonPlusText = _("Add item");
-                buttonPlus += '<input type="button" class="addItemControl" name="buttonPlus" style="cursor:pointer; margin:0 1em;" onclick="addItem(this,\'' + unique_item_fields + '\')" value="' + buttonPlusText + '" />';
+                buttonPlus += '<input type="button" class="addItemControl" name="buttonPlus" style="cursor:pointer; margin:0 1em;" onclick="addItem(this,\'' + unique_item_fields + '\')" value="' + (window.MSG_ADDITEM_JS_ADDITEM || 'Add item')+ '" />';
                 buttonPlus += '<a class="addItemControl cancel" name="buttonClear" style="cursor:pointer;" onclick="clearItemBlock(this)">' + (window.MSG_ADDITEM_JS_CLEAR || 'Clear') + '</a>';
                 buttonPlus += "</fieldset>";
             $(clone).append(buttonPlus);