arrowHandler: function (arrow) {
                                var list = [];
                                var library = Ext.getCmp("library");
                                var buttons = Ext.getCmp("numbered").menu.buttons; //where the dataURLs are pushed in another portion of the program
                                function btn(num) {
                                    var image = new Image;
                                    image.src = buttons[num].dataURL;
                                    this.xtype = "button";
                                    this.height = 50;
                                    this.width = 50;
                                    this.icon = image; //where putting an actual path works correctly, but this code doesn't
                                    this.num = num;
                                    this.handler = function (btn) {
                                        btn.up("button").menu.Style = this.num;
                                        btn.up("button").fireEvent("selected", this.num);
                                    };
                                }
                                for (var i = 0; i <= 0; i++)
                                    library.items.items.push(new btn(i));
                            },