diff -r 4c7ab16e5845 -r 19f0b7803aed client/js/main.js
--- a/client/js/main.js	Mon May 25 01:18:12 2015 +0200
+++ b/client/js/main.js	Fri May 29 14:57:37 2015 +0200
@@ -1,555 +1,568 @@
-
 /* Declaring the Renkan Namespace Rkns and Default values */
 
 (function(root) {
 
-"use strict";
+    "use strict";
+
+    if (typeof root.Rkns !== "object") {
+        root.Rkns = {};
+    }
+
+    var Rkns = root.Rkns;
+    var $ = Rkns.$ = root.jQuery;
+    var _ = Rkns._ = root._;
 
-if (typeof root.Rkns !== "object") {
-    root.Rkns = {};
-}
+    Rkns.pickerColors = ["#8f1919", "#a80000", "#d82626", "#ff0000", "#e87c7c", "#ff6565", "#f7d3d3", "#fecccc",
+        "#8f5419", "#a85400", "#d87f26", "#ff7f00", "#e8b27c", "#ffb265", "#f7e5d3", "#fee5cc",
+        "#8f8f19", "#a8a800", "#d8d826", "#feff00", "#e8e87c", "#feff65", "#f7f7d3", "#fefecc",
+        "#198f19", "#00a800", "#26d826", "#00ff00", "#7ce87c", "#65ff65", "#d3f7d3", "#ccfecc",
+        "#198f8f", "#00a8a8", "#26d8d8", "#00feff", "#7ce8e8", "#65feff", "#d3f7f7", "#ccfefe",
+        "#19198f", "#0000a8", "#2626d8", "#0000ff", "#7c7ce8", "#6565ff", "#d3d3f7", "#ccccfe",
+        "#8f198f", "#a800a8", "#d826d8", "#ff00fe", "#e87ce8", "#ff65fe", "#f7d3f7", "#feccfe",
+        "#000000", "#242424", "#484848", "#6d6d6d", "#919191", "#b6b6b6", "#dadada", "#ffffff"
+    ];
+
+    Rkns.__renkans = [];
 
-var Rkns = root.Rkns;
-var $ = Rkns.$ = root.jQuery;
-var _ = Rkns._ = root._;
+    var _BaseBin = Rkns._BaseBin = function(_renkan, _opts) {
+        if (typeof _renkan !== "undefined") {
+            this.renkan = _renkan;
+            this.renkan.$.find(".Rk-Bin-Main").hide();
+            this.$ = Rkns.$('<li>')
+                .addClass("Rk-Bin")
+                .appendTo(_renkan.$.find(".Rk-Bin-List"));
+            this.title_icon_$ = Rkns.$('<span>')
+                .addClass("Rk-Bin-Title-Icon")
+                .appendTo(this.$);
+
+            var _this = this;
 
-Rkns.pickerColors = ["#8f1919", "#a80000", "#d82626", "#ff0000", "#e87c7c", "#ff6565", "#f7d3d3", "#fecccc",
-    "#8f5419", "#a85400", "#d87f26", "#ff7f00", "#e8b27c", "#ffb265", "#f7e5d3", "#fee5cc",
-    "#8f8f19", "#a8a800", "#d8d826", "#feff00", "#e8e87c", "#feff65", "#f7f7d3", "#fefecc",
-    "#198f19", "#00a800", "#26d826", "#00ff00", "#7ce87c", "#65ff65", "#d3f7d3", "#ccfecc",
-    "#198f8f", "#00a8a8", "#26d8d8", "#00feff", "#7ce8e8", "#65feff", "#d3f7f7", "#ccfefe",
-    "#19198f", "#0000a8", "#2626d8", "#0000ff", "#7c7ce8", "#6565ff", "#d3d3f7", "#ccccfe",
-    "#8f198f", "#a800a8", "#d826d8", "#ff00fe", "#e87ce8", "#ff65fe", "#f7d3f7", "#feccfe",
-    "#000000", "#242424", "#484848", "#6d6d6d", "#919191", "#b6b6b6", "#dadada", "#ffffff"];
-
-Rkns.__renkans = [];
+            Rkns.$('<a>')
+                .attr({
+                    href: "#",
+                    title: _renkan.translate("Close bin")
+                })
+                .addClass("Rk-Bin-Close")
+                .html('&times;')
+                .appendTo(this.$)
+                .click(function() {
+                    _this.destroy();
+                    if (!_renkan.$.find(".Rk-Bin-Main:visible").length) {
+                        _renkan.$.find(".Rk-Bin-Main:last").slideDown();
+                    }
+                    _renkan.resizeBins();
+                    return false;
+                });
+            Rkns.$('<a>')
+                .attr({
+                    href: "#",
+                    title: _renkan.translate("Refresh bin")
+                })
+                .addClass("Rk-Bin-Refresh")
+                .appendTo(this.$)
+                .click(function() {
+                    _this.refresh();
+                    return false;
+                });
+            this.count_$ = Rkns.$('<div>')
+                .addClass("Rk-Bin-Count")
+                .appendTo(this.$);
+            this.title_$ = Rkns.$('<h2>')
+                .addClass("Rk-Bin-Title")
+                .appendTo(this.$);
+            this.main_$ = Rkns.$('<div>')
+                .addClass("Rk-Bin-Main")
+                .appendTo(this.$)
+                .html('<h4 class="Rk-Bin-Loading">' + _renkan.translate("Loading, please wait") + '</h4>');
+            this.title_$.html(_opts.title || '(new bin)');
+            this.renkan.resizeBins();
 
-var _BaseBin = Rkns._BaseBin = function(_renkan, _opts) {
-    if (typeof _renkan !== "undefined") {
-        this.renkan = _renkan;
-        this.renkan.$.find(".Rk-Bin-Main").hide();
-        this.$ = Rkns.$('<li>')
-            .addClass("Rk-Bin")
-            .appendTo(_renkan.$.find(".Rk-Bin-List"));
-        this.title_icon_$ = Rkns.$('<span>')
-            .addClass("Rk-Bin-Title-Icon")
-            .appendTo(this.$);
+            if (_opts.auto_refresh) {
+                window.setInterval(function() {
+                    _this.refresh();
+                }, _opts.auto_refresh);
+            }
+        }
+    };
 
+    _BaseBin.prototype.destroy = function() {
+        this.$.detach();
+        this.renkan.resizeBins();
+    };
+
+    /* Point of entry */
+
+    var Renkan = Rkns.Renkan = function(_opts) {
         var _this = this;
 
-        Rkns.$('<a>')
-            .attr({
-                href: "#",
-                title: _renkan.translate("Close bin")
-            })
-            .addClass("Rk-Bin-Close")
-            .html('&times;')
-            .appendTo(this.$)
-            .click(function() {
-                _this.destroy();
-                if (!_renkan.$.find(".Rk-Bin-Main:visible").length) {
-                    _renkan.$.find(".Rk-Bin-Main:last").slideDown();
-                }
-                _renkan.resizeBins();
-                return false;
-            });
-        Rkns.$('<a>')
-            .attr({
-                href: "#",
-                title: _renkan.translate("Refresh bin")
-            })
-            .addClass("Rk-Bin-Refresh")
-            .appendTo(this.$)
-            .click(function() {
-                _this.refresh();
-                return false;
-            });
-        this.count_$ = Rkns.$('<div>')
-            .addClass("Rk-Bin-Count")
-            .appendTo(this.$);
-        this.title_$ = Rkns.$('<h2>')
-            .addClass("Rk-Bin-Title")
-            .appendTo(this.$);
-        this.main_$ = Rkns.$('<div>')
-            .addClass("Rk-Bin-Main")
-            .appendTo(this.$)
-            .html('<h4 class="Rk-Bin-Loading">' + _renkan.translate("Loading, please wait") + '</h4>');
-        this.title_$.html(_opts.title || '(new bin)');
-        this.renkan.resizeBins();
+        Rkns.__renkans.push(this);
+
+        this.options = _.defaults(_opts, Rkns.defaults, {
+            templates: renkanJST
+        });
+        this.template = renkanJST['templates/main.html'];
 
-        if (_opts.auto_refresh) {
-            window.setInterval(function() {
-                _this.refresh();
-            },_opts.auto_refresh);
-        }
-    }
-};
-
-_BaseBin.prototype.destroy = function() {
-    this.$.detach();
-    this.renkan.resizeBins();
-};
-
-/* Point of entry */
-
-var Renkan = Rkns.Renkan = function(_opts) {
-    var _this = this;
-
-    Rkns.__renkans.push(this);
+        _.each(this.options.property_files, function(f) {
+            Rkns.$.getJSON(f, function(data) {
+                _this.options.properties = _this.options.properties.concat(data);
+            });
+        });
 
-    this.options = _.defaults(_opts, Rkns.defaults, {templates: renkanJST});
-    this.template = renkanJST['templates/main.html'];
-
-    _.each(this.options.property_files,function(f) {
-        Rkns.$.getJSON(f, function(data) {
-            _this.options.properties = _this.options.properties.concat(data);
-        });
-    });
-
-    this.read_only = this.options.read_only || !this.options.editor_mode;
+        this.read_only = this.options.read_only || !this.options.editor_mode;
 
-    this.project = new Rkns.Models.Project();
-
-    this.setCurrentUser = function (user_id, user_name) {
-    	this.project.addUser({
-    		_id:user_id,
-    		title: user_name
-    	});
-    	this.current_user = user_id;
-    	this.renderer.redrawUsers();
-    };
+        this.project = new Rkns.Models.Project();
+        this.dataloader = new Rkns.DataLoader.Loader(this.project, this.options);
 
-    if (typeof this.options.user_id !== "undefined") {
-        this.current_user = this.options.user_id;
-    }
-    this.$ = Rkns.$("#" + this.options.container);
-    this.$
-        .addClass("Rk-Main")
-        .html(this.template(this));
-
-    this.tabs = [];
-    this.search_engines = [];
-
-    this.current_user_list = new Rkns.Models.UsersList();
-
-    this.current_user_list.on("add remove", function() {
-        if (this.renderer) {
+        this.setCurrentUser = function(user_id, user_name) {
+            this.project.addUser({
+                _id: user_id,
+                title: user_name
+            });
+            this.current_user = user_id;
             this.renderer.redrawUsers();
-        }
-    });
-
-    this.colorPicker = (function() {
-        var _tmpl = renkanJST['templates/colorpicker.html'];
-        return '<ul class="Rk-Edit-ColorPicker">' + Rkns.pickerColors.map(function(c) { return _tmpl({c:c});}).join("") + '</ul>';
-    })();
-
-    if (this.options.show_editor) {
-        this.renderer = new Rkns.Renderer.Scene(this);
-    }
+        };
 
-    if (!this.options.search.length) {
-        this.$.find(".Rk-Web-Search-Form").detach();
-    } else {
-        var _tmpl = renkanJST['templates/search.html'],
-            _select = this.$.find(".Rk-Search-List"),
-            _input = this.$.find(".Rk-Web-Search-Input"),
-            _form = this.$.find(".Rk-Web-Search-Form");
-        _.each(this.options.search, function(_search, _key) {
-            if (Rkns[_search.type] && Rkns[_search.type].Search) {
-                _this.search_engines.push(new Rkns[_search.type].Search(_this, _search));
-            }
-        });
-        _select.html(
-            _(this.search_engines).map(function(_search, _key) {
-                return _tmpl({
-                    key: _key,
-                    title: _search.getSearchTitle(),
-                    className: _search.getBgClass()
-                });
-            }).join("")
-        );
-        _select.find("li").click(function() {
-            var _el = Rkns.$(this);
-            _this.setSearchEngine(_el.attr("data-key"));
-            _form.submit();
-        });
-        _form.submit(function() {
-            if (_input.val()) {
-                var _search = _this.search_engine;
-                _search.search(_input.val());
-            }
-            return false;
-        });
-        this.$.find(".Rk-Search-Current").mouseenter(
-            function() { _select.slideDown(); }
-        );
-        this.$.find(".Rk-Search-Select").mouseleave(
-            function() { _select.hide(); }
-        );
-        this.setSearchEngine(0);
-    }
-    _.each(this.options.bins, function(_bin) {
-        if (Rkns[_bin.type] && Rkns[_bin.type].Bin) {
-            _this.tabs.push(new Rkns[_bin.type].Bin(_this, _bin));
+        if (typeof this.options.user_id !== "undefined") {
+            this.current_user = this.options.user_id;
         }
-    });
-
-    var elementDropped = false;
+        this.$ = Rkns.$("#" + this.options.container);
+        this.$
+            .addClass("Rk-Main")
+            .html(this.template(this));
 
-    this.$.find(".Rk-Bins")
-        .on("click",".Rk-Bin-Title,.Rk-Bin-Title-Icon", function() {
-            var _mainDiv = Rkns.$(this).siblings(".Rk-Bin-Main");
-            if (_mainDiv.is(":hidden")) {
-                _this.$.find(".Rk-Bin-Main").slideUp();
-                _mainDiv.slideDown();
+        this.tabs = [];
+        this.search_engines = [];
+
+        this.current_user_list = new Rkns.Models.UsersList();
+
+        this.current_user_list.on("add remove", function() {
+            if (this.renderer) {
+                this.renderer.redrawUsers();
             }
         });
 
-    if (this.options.show_editor) {
-
-        this.$.find(".Rk-Bins").on("mouseover", ".Rk-Bin-Item", function(_e) {
-            var _t = Rkns.$(this);
-            if (_t && $(_t).attr("data-uri")) {
-                var _models = _this.project.get("nodes").where({
-                    uri: $(_t).attr("data-uri")
-                });
-                _.each(_models, function(_model) {
-                    _this.renderer.highlightModel(_model);
+        this.colorPicker = (function() {
+            var _tmpl = renkanJST['templates/colorpicker.html'];
+            return '<ul class="Rk-Edit-ColorPicker">' + Rkns.pickerColors.map(function(c) {
+                return _tmpl({
+                    c: c
                 });
-            }
-        }).mouseout(function() {
-            _this.renderer.unhighlightAll();
-        }).on("mousemove", ".Rk-Bin-Item", function(e) {
-            try {
-                this.dragDrop();
-            }
-            catch(err) {}
-        }).on("touchstart", ".Rk-Bin-Item", function(e) {
-            elementDropped = false;
-        }).on("touchmove", ".Rk-Bin-Item", function(e) {
-            e.preventDefault();
-            var touch = e.originalEvent.changedTouches[0],
-                off = _this.renderer.canvas_$.offset(),
-                w = _this.renderer.canvas_$.width(),
-                h = _this.renderer.canvas_$.height();
-            if (touch.pageX >= off.left && touch.pageX < (off.left + w) && touch.pageY >= off.top && touch.pageY < (off.top + h)) {
-                if (elementDropped) {
-                    _this.renderer.onMouseMove(touch, true);
-                } else {
-                    elementDropped = true;
-                    var div = document.createElement('div');
-                    div.appendChild(this.cloneNode(true));
-                    _this.renderer.dropData({"text/html": div.innerHTML}, touch);
-                    _this.renderer.onMouseDown(touch, true);
+            }).join("") + '</ul>';
+        })();
+
+        if (this.options.show_editor) {
+            this.renderer = new Rkns.Renderer.Scene(this);
+        }
+
+        if (!this.options.search.length) {
+            this.$.find(".Rk-Web-Search-Form").detach();
+        } else {
+            var _tmpl = renkanJST['templates/search.html'],
+                _select = this.$.find(".Rk-Search-List"),
+                _input = this.$.find(".Rk-Web-Search-Input"),
+                _form = this.$.find(".Rk-Web-Search-Form");
+            _.each(this.options.search, function(_search, _key) {
+                if (Rkns[_search.type] && Rkns[_search.type].Search) {
+                    _this.search_engines.push(new Rkns[_search.type].Search(_this, _search));
                 }
-            }
-        }).on("touchend", ".Rk-Bin-Item", function(e) {
-            if (elementDropped) {
-                _this.renderer.onMouseUp(e.originalEvent.changedTouches[0], true);
-            }
-            elementDropped = false;
-        }).on("dragstart", ".Rk-Bin-Item", function(e) {
-            var div = document.createElement('div');
-            div.appendChild(this.cloneNode(true));
-            try {
-                e.originalEvent.dataTransfer.setData("text/html",div.innerHTML);
-            }
-            catch(err) {
-                e.originalEvent.dataTransfer.setData("text",div.innerHTML);
+            });
+            _select.html(
+                _(this.search_engines).map(function(_search, _key) {
+                    return _tmpl({
+                        key: _key,
+                        title: _search.getSearchTitle(),
+                        className: _search.getBgClass()
+                    });
+                }).join("")
+            );
+            _select.find("li").click(function() {
+                var _el = Rkns.$(this);
+                _this.setSearchEngine(_el.attr("data-key"));
+                _form.submit();
+            });
+            _form.submit(function() {
+                if (_input.val()) {
+                    var _search = _this.search_engine;
+                    _search.search(_input.val());
+                }
+                return false;
+            });
+            this.$.find(".Rk-Search-Current").mouseenter(
+                function() {
+                    _select.slideDown();
+                }
+            );
+            this.$.find(".Rk-Search-Select").mouseleave(
+                function() {
+                    _select.hide();
+                }
+            );
+            this.setSearchEngine(0);
+        }
+        _.each(this.options.bins, function(_bin) {
+            if (Rkns[_bin.type] && Rkns[_bin.type].Bin) {
+                _this.tabs.push(new Rkns[_bin.type].Bin(_this, _bin));
             }
         });
 
-    }
+        var elementDropped = false;
 
-    Rkns.$(window).resize(function() {
-        _this.resizeBins();
-    });
+        this.$.find(".Rk-Bins")
+            .on("click", ".Rk-Bin-Title,.Rk-Bin-Title-Icon", function() {
+                var _mainDiv = Rkns.$(this).siblings(".Rk-Bin-Main");
+                if (_mainDiv.is(":hidden")) {
+                    _this.$.find(".Rk-Bin-Main").slideUp();
+                    _mainDiv.slideDown();
+                }
+            });
 
-    var lastsearch = false, lastval = '';
+        if (this.options.show_editor) {
 
-    this.$.find(".Rk-Bins-Search-Input").on("change keyup paste input", function() {
-        var val = Rkns.$(this).val();
-        if (val === lastval) {
-            return;
+            this.$.find(".Rk-Bins").on("mouseover", ".Rk-Bin-Item", function(_e) {
+                var _t = Rkns.$(this);
+                if (_t && $(_t).attr("data-uri")) {
+                    var _models = _this.project.get("nodes").where({
+                        uri: $(_t).attr("data-uri")
+                    });
+                    _.each(_models, function(_model) {
+                        _this.renderer.highlightModel(_model);
+                    });
+                }
+            }).mouseout(function() {
+                _this.renderer.unhighlightAll();
+            }).on("mousemove", ".Rk-Bin-Item", function(e) {
+                try {
+                    this.dragDrop();
+                } catch (err) {}
+            }).on("touchstart", ".Rk-Bin-Item", function(e) {
+                elementDropped = false;
+            }).on("touchmove", ".Rk-Bin-Item", function(e) {
+                e.preventDefault();
+                var touch = e.originalEvent.changedTouches[0],
+                    off = _this.renderer.canvas_$.offset(),
+                    w = _this.renderer.canvas_$.width(),
+                    h = _this.renderer.canvas_$.height();
+                if (touch.pageX >= off.left && touch.pageX < (off.left + w) && touch.pageY >= off.top && touch.pageY < (off.top + h)) {
+                    if (elementDropped) {
+                        _this.renderer.onMouseMove(touch, true);
+                    } else {
+                        elementDropped = true;
+                        var div = document.createElement('div');
+                        div.appendChild(this.cloneNode(true));
+                        _this.renderer.dropData({
+                            "text/html": div.innerHTML
+                        }, touch);
+                        _this.renderer.onMouseDown(touch, true);
+                    }
+                }
+            }).on("touchend", ".Rk-Bin-Item", function(e) {
+                if (elementDropped) {
+                    _this.renderer.onMouseUp(e.originalEvent.changedTouches[0], true);
+                }
+                elementDropped = false;
+            }).on("dragstart", ".Rk-Bin-Item", function(e) {
+                var div = document.createElement('div');
+                div.appendChild(this.cloneNode(true));
+                try {
+                    e.originalEvent.dataTransfer.setData("text/html", div.innerHTML);
+                } catch (err) {
+                    e.originalEvent.dataTransfer.setData("text", div.innerHTML);
+                }
+            });
+
         }
-        var search = Rkns.Utils.regexpFromTextOrArray(val.length > 1 ? val: null);
-        if (search.source === lastsearch) {
-            return;
-        }
-        lastsearch = search.source;
-        _.each(_this.tabs, function(tab) {
-            tab.render(search);
+
+        Rkns.$(window).resize(function() {
+            _this.resizeBins();
         });
 
-    });
-    this.$.find(".Rk-Bins-Search-Form").submit(function() {
-        return false;
-    });
-
-};
-
-Renkan.prototype.translate = function(_text) {
-    if (Rkns.i18n[this.options.language] && Rkns.i18n[this.options.language][_text]) {
-        return Rkns.i18n[this.options.language][_text];
-    }
-    if (this.options.language.length > 2 && Rkns.i18n[this.options.language.substr(0,2)] && Rkns.i18n[this.options.language.substr(0,2)][_text]) {
-        return Rkns.i18n[this.options.language.substr(0,2)][_text];
-    }
-    return _text;
-};
-
-Renkan.prototype.onStatusChange = function() {
-    this.renderer.onStatusChange();
-};
-
-Renkan.prototype.setSearchEngine = function(_key) {
-    this.search_engine = this.search_engines[_key];
-    this.$.find(".Rk-Search-Current").attr("class","Rk-Search-Current " + this.search_engine.getBgClass());
-    var listClasses = this.search_engine.getBgClass().split(" ");
-    var classes = "";
-    for	(var i= 0; i < listClasses.length; i++) {
-        classes += "." + listClasses[i];
-    }
-    this.$.find(".Rk-Web-Search-Input.Rk-Search-Input").attr("placeholder", this.translate("Search in ") + this.$.find(".Rk-Search-List "+ classes).html());
-};
-
-Renkan.prototype.resizeBins = function() {
-    var _d = + this.$.find(".Rk-Bins-Head").outerHeight();
-    this.$.find(".Rk-Bin-Title:visible").each(function() {
-        _d += Rkns.$(this).outerHeight();
-    });
-    this.$.find(".Rk-Bin-Main").css({
-        height: this.$.find(".Rk-Bins").height() - _d
-    });
-};
-
-/* Utility functions */
-var getUUID4 = function() {
-    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
-        var r = Math.random()*16|0, v = c === 'x' ? r : (r&0x3|0x8);
-        return v.toString(16);
-    });
-};
+        var lastsearch = false,
+            lastval = '';
 
-Rkns.Utils = {
-    getUUID4 : getUUID4,
-    getUID : (function() {
-        function pad(n){
-            return n<10 ? '0'+n : n;
-        }
-        var _d = new Date(),
-            ID_AUTO_INCREMENT = 0,
-            ID_BASE = _d.getUTCFullYear() + '-' +
-              pad(_d.getUTCMonth()+1) + '-' +
-              pad(_d.getUTCDate()) + '-' +
-              getUUID4();
-        return function(_base) {
-            var _n = (++ID_AUTO_INCREMENT).toString(16),
-                _uidbase = (typeof _base === "undefined" ? "" : _base + "-" );
-            while (_n.length < 4) { _n = '0' + _n; }
-            return _uidbase + ID_BASE + '-' + _n;
-        };
-    })(),
-    getFullURL : function(url) {
-
-        if(typeof(url) === 'undefined' || url == null ) {
-            return "";
-        }
-        if(/https?:\/\//.test(url)) {
-            return url;
-        }
-        var img = new Image();
-        img.src = url;
-        var res = img.src;
-        img.src = null;
-        return res;
-
-    },
-    inherit : function(_baseClass, _callbefore) {
-
-        var _class = function(_arg) {
-            if (typeof _callbefore === "function") {
-                _callbefore.apply(this, Array.prototype.slice.call(arguments, 0));
+        this.$.find(".Rk-Bins-Search-Input").on("change keyup paste input", function() {
+            var val = Rkns.$(this).val();
+            if (val === lastval) {
+                return;
             }
-            _baseClass.apply(this, Array.prototype.slice.call(arguments, 0));
-            if (typeof this._init === "function" && !this._initialized) {
-                this._init.apply(this, Array.prototype.slice.call(arguments, 0));
-                this._initialized = true;
+            var search = Rkns.Utils.regexpFromTextOrArray(val.length > 1 ? val : null);
+            if (search.source === lastsearch) {
+                return;
             }
-        };
-        _.extend(_class.prototype,_baseClass.prototype);
-
-        return _class;
-
-    },
-    regexpFromTextOrArray: (function() {
-        var charsub = [
-                '[aáàâä]',
-                '[cç]',
-                '[eéèêë]',
-                '[iíìîï]',
-                '[oóòôö]',
-                '[uùûü]'
-            ],
-            removeChars = [
-                String.fromCharCode(768), String.fromCharCode(769), String.fromCharCode(770), String.fromCharCode(771), String.fromCharCode(807),
-                "｛", "｝", "（", "）", "［", "］", "【", "】", "、", "・", "‥", "。", "「", "」", "『", "』", "〜", "：", "！", "？", "　",
-                ",", " ", ";", "(", ")", ".", "*", "+", "\\", "?", "|", "{", "}", "[", "]", "^", "#", "/"
-            ],
-            remsrc = "[\\" + removeChars.join("\\") + "]",
-            remrx = new RegExp(remsrc, "gm"),
-            charsrx = _.map(charsub, function(c) {
-                return new RegExp(c);
+            lastsearch = search.source;
+            _.each(_this.tabs, function(tab) {
+                tab.render(search);
             });
 
-        function replaceText(_text) {
-            var txt = _text.toLowerCase().replace(remrx,""), src = "";
-            function makeReplaceFunc(l) {
-              return function(k,v) {
-                l = l.replace(charsrx[k], v);
-              };
-            }
-            for (var j = 0; j < txt.length; j++) {
-                if (j) {
-                    src += remsrc + "*";
-                }
-                var l = txt[j];
-                _.each(charsub, makeReplaceFunc(l));
-                src += l;
-            }
-            return src;
+        });
+        this.$.find(".Rk-Bins-Search-Form").submit(function() {
+            return false;
+        });
+
+    };
+
+    Renkan.prototype.translate = function(_text) {
+        if (Rkns.i18n[this.options.language] && Rkns.i18n[this.options.language][_text]) {
+            return Rkns.i18n[this.options.language][_text];
+        }
+        if (this.options.language.length > 2 && Rkns.i18n[this.options.language.substr(0, 2)] && Rkns.i18n[this.options.language.substr(0, 2)][_text]) {
+            return Rkns.i18n[this.options.language.substr(0, 2)][_text];
         }
+        return _text;
+    };
+
+    Renkan.prototype.onStatusChange = function() {
+        this.renderer.onStatusChange();
+    };
+
+    Renkan.prototype.setSearchEngine = function(_key) {
+        this.search_engine = this.search_engines[_key];
+        this.$.find(".Rk-Search-Current").attr("class", "Rk-Search-Current " + this.search_engine.getBgClass());
+        var listClasses = this.search_engine.getBgClass().split(" ");
+        var classes = "";
+        for (var i = 0; i < listClasses.length; i++) {
+            classes += "." + listClasses[i];
+        }
+        this.$.find(".Rk-Web-Search-Input.Rk-Search-Input").attr("placeholder", this.translate("Search in ") + this.$.find(".Rk-Search-List " + classes).html());
+    };
+
+    Renkan.prototype.resizeBins = function() {
+        var _d = +this.$.find(".Rk-Bins-Head").outerHeight();
+        this.$.find(".Rk-Bin-Title:visible").each(function() {
+            _d += Rkns.$(this).outerHeight();
+        });
+        this.$.find(".Rk-Bin-Main").css({
+            height: this.$.find(".Rk-Bins").height() - _d
+        });
+    };
+
+    /* Utility functions */
+    var getUUID4 = function() {
+        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+            var r = Math.random() * 16 | 0,
+                v = c === 'x' ? r : (r & 0x3 | 0x8);
+            return v.toString(16);
+        });
+    };
 
-        function getSource(inp) {
-            switch (typeof inp) {
-                case "string":
-                    return replaceText(inp);
-                case "object":
-                    var src = '';
-                    _.each(inp, function(v) {
-                        var res = getSource(v);
-                        if (res) {
-                            if (src) {
-                                src += '|';
-                            }
-                            src += res;
-                        }
-                    });
-                    return src;
+    Rkns.Utils = {
+        getUUID4: getUUID4,
+        getUID: (function() {
+            function pad(n) {
+                return n < 10 ? '0' + n : n;
             }
-            return '';
-        }
+            var _d = new Date(),
+                ID_AUTO_INCREMENT = 0,
+                ID_BASE = _d.getUTCFullYear() + '-' +
+                pad(_d.getUTCMonth() + 1) + '-' +
+                pad(_d.getUTCDate()) + '-' +
+                getUUID4();
+            return function(_base) {
+                var _n = (++ID_AUTO_INCREMENT).toString(16),
+                    _uidbase = (typeof _base === "undefined" ? "" : _base + "-");
+                while (_n.length < 4) {
+                    _n = '0' + _n;
+                }
+                return _uidbase + ID_BASE + '-' + _n;
+            };
+        })(),
+        getFullURL: function(url) {
+
+            if (typeof(url) === 'undefined' || url == null) {
+                return "";
+            }
+            if (/https?:\/\//.test(url)) {
+                return url;
+            }
+            var img = new Image();
+            img.src = url;
+            var res = img.src;
+            img.src = null;
+            return res;
+
+        },
+        inherit: function(_baseClass, _callbefore) {
 
-        return function(_textOrArray) {
-            var source = getSource(_textOrArray);
-            if (source) {
-                var testrx = new RegExp( source, "im"),
-                    replacerx = new RegExp( '(' + source + ')', "igm");
-                return {
-                    isempty: false,
-                    source: source,
-                    test: function(_t) { return testrx.test(_t); },
-                    replace: function(_text, _replace) { return _text.replace(replacerx, _replace); }
-                };
-            } else {
-                return {
-                    isempty: true,
-                    source: '',
-                    test: function() { return true; },
-                    replace: function(_text) { return text; }
-                };
-            }
-        };
-    })(),
-    /* The minimum distance (in pixels) the mouse has to move to consider an element was dragged */
-    _MIN_DRAG_DISTANCE: 2,
-    /* Distance between the inner and outer radius of buttons that appear when hovering on a node */
-    _NODE_BUTTON_WIDTH: 40,
+            var _class = function(_arg) {
+                if (typeof _callbefore === "function") {
+                    _callbefore.apply(this, Array.prototype.slice.call(arguments, 0));
+                }
+                _baseClass.apply(this, Array.prototype.slice.call(arguments, 0));
+                if (typeof this._init === "function" && !this._initialized) {
+                    this._init.apply(this, Array.prototype.slice.call(arguments, 0));
+                    this._initialized = true;
+                }
+            };
+            _.extend(_class.prototype, _baseClass.prototype);
+
+            return _class;
+
+        },
+        regexpFromTextOrArray: (function() {
+            var charsub = [
+                    '[aáàâä]',
+                    '[cç]',
+                    '[eéèêë]',
+                    '[iíìîï]',
+                    '[oóòôö]',
+                    '[uùûü]'
+                ],
+                removeChars = [
+                    String.fromCharCode(768), String.fromCharCode(769), String.fromCharCode(770), String.fromCharCode(771), String.fromCharCode(807),
+                    "｛", "｝", "（", "）", "［", "］", "【", "】", "、", "・", "‥", "。", "「", "」", "『", "』", "〜", "：", "！", "？", "　",
+                    ",", " ", ";", "(", ")", ".", "*", "+", "\\", "?", "|", "{", "}", "[", "]", "^", "#", "/"
+                ],
+                remsrc = "[\\" + removeChars.join("\\") + "]",
+                remrx = new RegExp(remsrc, "gm"),
+                charsrx = _.map(charsub, function(c) {
+                    return new RegExp(c);
+                });
+
+            function replaceText(_text) {
+                var txt = _text.toLowerCase().replace(remrx, ""),
+                    src = "";
 
-    _EDGE_BUTTON_INNER: 2,
-    _EDGE_BUTTON_OUTER: 40,
-    /* Constants used to know if a specific action is to be performed when clicking on the canvas */
-    _CLICKMODE_ADDNODE: 1,
-    _CLICKMODE_STARTEDGE: 2,
-    _CLICKMODE_ENDEDGE: 3,
-    /* Node size step: Used to calculate the size change when clicking the +/- buttons */
-    _NODE_SIZE_STEP: Math.LN2/4,
-    _MIN_SCALE: 1/20,
-    _MAX_SCALE: 20,
-    _MOUSEMOVE_RATE: 80,
-    _DOUBLETAP_DELAY: 800,
-    /* Maximum distance in pixels (squared, to reduce calculations)
-     * between two taps when double-tapping on a touch terminal */
-    _DOUBLETAP_DISTANCE: 20*20,
-    /* A placeholder so a default colour is displayed when a node has a null value for its user property */
-    _USER_PLACEHOLDER: function(_renkan) {
-        return {
-            color: _renkan.options.default_user_color,
-            title: _renkan.translate("(unknown user)"),
-            get: function(attr) {
-                return this[attr] || false;
+                function makeReplaceFunc(l) {
+                    return function(k, v) {
+                        l = l.replace(charsrx[k], v);
+                    };
+                }
+                for (var j = 0; j < txt.length; j++) {
+                    if (j) {
+                        src += remsrc + "*";
+                    }
+                    var l = txt[j];
+                    _.each(charsub, makeReplaceFunc(l));
+                    src += l;
+                }
+                return src;
+            }
+
+            function getSource(inp) {
+                switch (typeof inp) {
+                    case "string":
+                        return replaceText(inp);
+                    case "object":
+                        var src = '';
+                        _.each(inp, function(v) {
+                            var res = getSource(v);
+                            if (res) {
+                                if (src) {
+                                    src += '|';
+                                }
+                                src += res;
+                            }
+                        });
+                        return src;
+                }
+                return '';
             }
-        };
-    },
-    /* The code for the "Drag and Add Bookmarklet", slightly minified and with whitespaces removed, though
-     * it doesn't seem that it's still a requirement in newer browsers (i.e. the ones compatibles with canvas drawing)
-     */
-    _BOOKMARKLET_CODE: function(_renkan) {
-        return "(function(a,b,c,d,e,f,h,i,j,k,l,m,n,o,p,q,r){a=document;b=a.body;c=a.location.href;j='draggable';m='text/x-iri-';d=a.createElement('div');d.innerHTML='<p_style=\"position:fixed;top:0;right:0;font:bold_18px_sans-serif;color:#fff;background:#909;padding:10px;z-index:100000;\">" +
-        _renkan.translate("Drag items from this website, drop them in Renkan").replace(/ /g,"_") +
-        "</p>'.replace(/_/g,String.fromCharCode(32));b.appendChild(d);e=[{r:/https?:\\/\\/[^\\/]*twitter\\.com\\//,s:'.tweet',n:'twitter'},{r:/https?:\\/\\/[^\\/]*google\\.[^\\/]+\\//,s:'.g',n:'google'},{r:/https?:\\/\\/[^\\/]*lemonde\\.fr\\//,s:'[data-vr-contentbox]',n:'lemonde'}];f=false;e.forEach(function(g){if(g.r.test(c)){f=g;}});if(f){h=function(){Array.prototype.forEach.call(a.querySelectorAll(f.s),function(i){i[j]=true;k=i.style;k.borderWidth='2px';k.borderColor='#909';k.borderStyle='solid';k.backgroundColor='rgba(200,0,180,.1)';})};window.setInterval(h,500);h();};a.addEventListener('dragstart',function(k){l=k.dataTransfer;l.setData(m+'source-uri',c);l.setData(m+'source-title',a.title);n=k.target;if(f){o=n;while(!o.attributes[j]){o=o.parentNode;if(o==b){break;}}}if(f&&o.attributes[j]){p=o.cloneNode(true);l.setData(m+'specific-site',f.n)}else{q=a.getSelection();if(q.type==='Range'||!q.type){p=q.getRangeAt(0).cloneContents();}else{p=n.cloneNode();}}r=a.createElement('div');r.appendChild(p);l.setData('text/x-iri-selected-text',r.textContent.trim());l.setData('text/x-iri-selected-html',r.innerHTML);},false);})();";
-    },
-    /* Shortens text to the required length then adds ellipsis */
-    shortenText: function(_text, _maxlength) {
-        return (_text.length > _maxlength ? (_text.substr(0,_maxlength) + '…') : _text);
-    },
-    /* Drawing an edit box with an arrow and positioning the edit box according to the position of the node/edge being edited
-     * Called by Rkns.Renderer.NodeEditor and Rkns.Renderer.EdgeEditor */
-    drawEditBox: function(_options, _coords, _path, _xmargin, _selector) {
-        _selector.css({
-            width: ( _options.tooltip_width - 2* _options.tooltip_padding )
-        });
-        var _height = _selector.outerHeight() + 2* _options.tooltip_padding,
-        _isLeft = (_coords.x < paper.view.center.x ? 1 : -1),
-        _left = _coords.x + _isLeft * ( _xmargin + _options.tooltip_arrow_length ),
-        _right = _coords.x + _isLeft * ( _xmargin + _options.tooltip_arrow_length + _options.tooltip_width ),
-        _top = _coords.y - _height / 2;
-        if (_top + _height > (paper.view.size.height - _options.tooltip_margin)) {
-            _top = Math.max( paper.view.size.height - _options.tooltip_margin, _coords.y + _options.tooltip_arrow_width / 2 ) - _height;
-        }
-        if (_top < _options.tooltip_margin) {
-            _top = Math.min( _options.tooltip_margin, _coords.y - _options.tooltip_arrow_width / 2 );
+
+            return function(_textOrArray) {
+                var source = getSource(_textOrArray);
+                if (source) {
+                    var testrx = new RegExp(source, "im"),
+                        replacerx = new RegExp('(' + source + ')', "igm");
+                    return {
+                        isempty: false,
+                        source: source,
+                        test: function(_t) {
+                            return testrx.test(_t);
+                        },
+                        replace: function(_text, _replace) {
+                            return _text.replace(replacerx, _replace);
+                        }
+                    };
+                } else {
+                    return {
+                        isempty: true,
+                        source: '',
+                        test: function() {
+                            return true;
+                        },
+                        replace: function(_text) {
+                            return text;
+                        }
+                    };
+                }
+            };
+        })(),
+        /* The minimum distance (in pixels) the mouse has to move to consider an element was dragged */
+        _MIN_DRAG_DISTANCE: 2,
+        /* Distance between the inner and outer radius of buttons that appear when hovering on a node */
+        _NODE_BUTTON_WIDTH: 40,
+
+        _EDGE_BUTTON_INNER: 2,
+        _EDGE_BUTTON_OUTER: 40,
+        /* Constants used to know if a specific action is to be performed when clicking on the canvas */
+        _CLICKMODE_ADDNODE: 1,
+        _CLICKMODE_STARTEDGE: 2,
+        _CLICKMODE_ENDEDGE: 3,
+        /* Node size step: Used to calculate the size change when clicking the +/- buttons */
+        _NODE_SIZE_STEP: Math.LN2 / 4,
+        _MIN_SCALE: 1 / 20,
+        _MAX_SCALE: 20,
+        _MOUSEMOVE_RATE: 80,
+        _DOUBLETAP_DELAY: 800,
+        /* Maximum distance in pixels (squared, to reduce calculations)
+         * between two taps when double-tapping on a touch terminal */
+        _DOUBLETAP_DISTANCE: 20 * 20,
+        /* A placeholder so a default colour is displayed when a node has a null value for its user property */
+        _USER_PLACEHOLDER: function(_renkan) {
+            return {
+                color: _renkan.options.default_user_color,
+                title: _renkan.translate("(unknown user)"),
+                get: function(attr) {
+                    return this[attr] || false;
+                }
+            };
+        },
+        /* The code for the "Drag and Add Bookmarklet", slightly minified and with whitespaces removed, though
+         * it doesn't seem that it's still a requirement in newer browsers (i.e. the ones compatibles with canvas drawing)
+         */
+        _BOOKMARKLET_CODE: function(_renkan) {
+            return "(function(a,b,c,d,e,f,h,i,j,k,l,m,n,o,p,q,r){a=document;b=a.body;c=a.location.href;j='draggable';m='text/x-iri-';d=a.createElement('div');d.innerHTML='<p_style=\"position:fixed;top:0;right:0;font:bold_18px_sans-serif;color:#fff;background:#909;padding:10px;z-index:100000;\">" +
+                _renkan.translate("Drag items from this website, drop them in Renkan").replace(/ /g, "_") +
+                "</p>'.replace(/_/g,String.fromCharCode(32));b.appendChild(d);e=[{r:/https?:\\/\\/[^\\/]*twitter\\.com\\//,s:'.tweet',n:'twitter'},{r:/https?:\\/\\/[^\\/]*google\\.[^\\/]+\\//,s:'.g',n:'google'},{r:/https?:\\/\\/[^\\/]*lemonde\\.fr\\//,s:'[data-vr-contentbox]',n:'lemonde'}];f=false;e.forEach(function(g){if(g.r.test(c)){f=g;}});if(f){h=function(){Array.prototype.forEach.call(a.querySelectorAll(f.s),function(i){i[j]=true;k=i.style;k.borderWidth='2px';k.borderColor='#909';k.borderStyle='solid';k.backgroundColor='rgba(200,0,180,.1)';})};window.setInterval(h,500);h();};a.addEventListener('dragstart',function(k){l=k.dataTransfer;l.setData(m+'source-uri',c);l.setData(m+'source-title',a.title);n=k.target;if(f){o=n;while(!o.attributes[j]){o=o.parentNode;if(o==b){break;}}}if(f&&o.attributes[j]){p=o.cloneNode(true);l.setData(m+'specific-site',f.n)}else{q=a.getSelection();if(q.type==='Range'||!q.type){p=q.getRangeAt(0).cloneContents();}else{p=n.cloneNode();}}r=a.createElement('div');r.appendChild(p);l.setData('text/x-iri-selected-text',r.textContent.trim());l.setData('text/x-iri-selected-html',r.innerHTML);},false);})();";
+        },
+        /* Shortens text to the required length then adds ellipsis */
+        shortenText: function(_text, _maxlength) {
+            return (_text.length > _maxlength ? (_text.substr(0, _maxlength) + '…') : _text);
+        },
+        /* Drawing an edit box with an arrow and positioning the edit box according to the position of the node/edge being edited
+         * Called by Rkns.Renderer.NodeEditor and Rkns.Renderer.EdgeEditor */
+        drawEditBox: function(_options, _coords, _path, _xmargin, _selector) {
+            _selector.css({
+                width: (_options.tooltip_width - 2 * _options.tooltip_padding)
+            });
+            var _height = _selector.outerHeight() + 2 * _options.tooltip_padding,
+                _isLeft = (_coords.x < paper.view.center.x ? 1 : -1),
+                _left = _coords.x + _isLeft * (_xmargin + _options.tooltip_arrow_length),
+                _right = _coords.x + _isLeft * (_xmargin + _options.tooltip_arrow_length + _options.tooltip_width),
+                _top = _coords.y - _height / 2;
+            if (_top + _height > (paper.view.size.height - _options.tooltip_margin)) {
+                _top = Math.max(paper.view.size.height - _options.tooltip_margin, _coords.y + _options.tooltip_arrow_width / 2) - _height;
+            }
+            if (_top < _options.tooltip_margin) {
+                _top = Math.min(_options.tooltip_margin, _coords.y - _options.tooltip_arrow_width / 2);
+            }
+            var _bottom = _top + _height;
+            /* jshint laxbreak:true */
+            _path.segments[0].point = _path.segments[7].point = _coords.add([_isLeft * _xmargin, 0]);
+            _path.segments[1].point.x = _path.segments[2].point.x = _path.segments[5].point.x = _path.segments[6].point.x = _left;
+            _path.segments[3].point.x = _path.segments[4].point.x = _right;
+            _path.segments[2].point.y = _path.segments[3].point.y = _top;
+            _path.segments[4].point.y = _path.segments[5].point.y = _bottom;
+            _path.segments[1].point.y = _coords.y - _options.tooltip_arrow_width / 2;
+            _path.segments[6].point.y = _coords.y + _options.tooltip_arrow_width / 2;
+            _path.closed = true;
+            _path.fillColor = new paper.GradientColor(new paper.Gradient([_options.tooltip_top_color, _options.tooltip_bottom_color]), [0, _top], [0, _bottom]);
+            _selector.css({
+                left: (_options.tooltip_padding + Math.min(_left, _right)),
+                top: (_options.tooltip_padding + _top)
+            });
+            return _path;
         }
-        var _bottom = _top + _height;
-        /* jshint laxbreak:true */
-        _path.segments[0].point
-          = _path.segments[7].point
-          = _coords.add([_isLeft * _xmargin, 0]);
-        _path.segments[1].point.x
-          = _path.segments[2].point.x
-          = _path.segments[5].point.x
-          = _path.segments[6].point.x
-          = _left;
-        _path.segments[3].point.x
-          = _path.segments[4].point.x
-          = _right;
-        _path.segments[2].point.y
-          = _path.segments[3].point.y
-          = _top;
-        _path.segments[4].point.y
-          = _path.segments[5].point.y
-          = _bottom;
-        _path.segments[1].point.y = _coords.y - _options.tooltip_arrow_width / 2;
-        _path.segments[6].point.y = _coords.y + _options.tooltip_arrow_width / 2;
-        _path.closed = true;
-        _path.fillColor = new paper.GradientColor(new paper.Gradient([_options.tooltip_top_color, _options.tooltip_bottom_color]), [0,_top], [0, _bottom]);
-        _selector.css({
-            left: (_options.tooltip_padding + Math.min(_left, _right)),
-            top: (_options.tooltip_padding + _top)
-        });
-        return _path;
-    }
-};
+    };
 })(window);
 
 /* END main.js */