--- a/webapp/src/main/webapp/jquery/jquery.digilib.js	Thu Feb 25 11:21:47 2016 +0100
+++ b/webapp/src/main/webapp/jquery/jquery.digilib.js	Thu Feb 25 17:01:36 2016 +0100
@@ -1861,6 +1861,7 @@
             getImgTrafo : getImgTrafo,
             getQuality : getQuality,
             setQuality : setQuality,
+            setNumValue : setNumValue,
             getScaleMode : getScaleMode,
             setScaleMode : setScaleMode,
             getFitMode : getFitMode,

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webapp/src/main/webapp/jquery/jquery.digilib.sequence.js	Thu Feb 25 17:01:36 2016 +0100
@@ -0,0 +1,156 @@
+/*
+ * #%L
+ * digilib plugin stub
+ * %%
+ * Copyright (C) 2011 - 2013 Bibliotheca Hertziana, MPIWG Berlin
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser 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 Lesser Public License for more details.
+ *
+ * You should have received a copy of the GNU General Lesser Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * #L%
+ * Authors: Robert Casties, Martin Raspe
+ */
+/**
+digilib plugin stub
+ */
+
+(function($) {
+
+    // affine geometry
+    var geom;
+    // plugin object with digilib data
+    var digilib;
+    var fn;
+
+    var FULL_AREA;
+
+    var buttons = {
+            seq : {
+                onclick : ["doSequence", 1],
+                tooltip : "what does this button do?",
+                icon : "seq.png"
+                }
+    };
+
+    var defaults = {
+            // array of images to show sequentially
+            'imageSequence' : null,
+            // optional prefix for image file names
+            'imageSequenceBase' : null,
+            // show captions for sequential images?
+            'imageSequenceShowCaptions' : false
+    };
+
+    var actions = {
+         // replaces digilib.fn.gotoPage (monkey patch)
+        gotoPage : function (data, pageNr) {
+            var settings = data.settings;
+            settings.suppressParamNames = ['pt', 'fn'];
+            // settings.fn = 'numbers';
+            // settings.pt = '10';
+            var oldpn = settings.pn;
+            if (pageNr == null) {
+                pageNr = window.prompt("Goto image at index", oldpn);
+            }
+            if (pageNr == '-0') {
+                pageNr = settings.pt;
+            }
+            var pn = fn.setNumValue(settings, "pn", pageNr);
+            if (pn == null) return false; // nothing happened
+            if (pn < 1) {
+                alert("no such image (index number too low)");
+                settings.pn = oldpn;
+                return false;
+                }
+            // TODO: how do we get pt?
+            if (settings.pt != null) {
+                if (pn > settings.pt) {
+                    alert("no such image (index number too high)");
+                    settings.pn = oldpn;
+                    return false;
+                    }
+                }
+            // reset mk and others(?)
+            data.marks = [];
+            data.zoomArea = FULL_AREA.copy();
+            // then reload
+            console.error("fn", settings.fn, "pn", settings.pn);
+            fn.redisplay(data);
+            }
+    };
+
+    // plugin installation routine, called by digilib on each plugin object.
+    var install = function(plugin) {
+        digilib = plugin;
+        fn = plugin.fn;
+        console.debug('installing sequence plugin. digilib:', digilib);
+        // import geometry classes
+        geom = digilib.fn.geometry;
+        FULL_AREA = geom.rectangle(0,0,1,1);
+        // add defaults, actions, buttons to the main digilib object
+        $.extend(digilib.defaults, defaults);
+        $.extend(digilib.actions, actions);
+        $.extend(digilib.buttons, buttons);
+    };
+
+    // plugin initialization
+    var init = function (data) {
+        console.debug('initialising sequence plugin. data:', data);
+        var $data = $(data);
+        // monkey patch for the original action in jquery.digilib.js
+        digilib.fn.gotoPage = actions.gotoPage;
+        // install event handlers
+        $data.bind('setup', handleSetup);
+        $data.bind('update', handleUpdate);
+        $data.bind('redisplay', handleRedisplay);
+        $data.bind('dragZoom', handleDragZoom);
+    };
+
+
+    var handleSetup = function (evt) {
+        console.debug("sequence: handleSetup");
+        var data = this;
+    };
+
+    var handleUpdate = function (evt) {
+        console.debug("sequence: handleUpdate");
+        var data = this;
+    };
+
+    var handleRedisplay = function (evt) {
+        console.debug("sequence: handleRedisplay");
+        var data = this;
+    };
+
+    var handleDragZoom = function (evt, zoomArea) {
+        var data = this;
+    };
+
+    // plugin object, containing name, install and init routines
+    // all shared objects are filled by digilib on registration
+    var plugin = {
+            name : 'sequence',
+            install : install,
+            init : init,
+            buttons : {},
+            actions : {},
+            fn : {},
+            plugins : {}
+    };
+
+    if ($.fn.digilib == null) {
+        $.error("jquery.digilib.sequence.js must be loaded after jquery.digilib!");
+    } else {
+        $.fn.digilib('plugin', plugin);
+    }
+})(jQuery);