gistfile1.txt

        bindMapProperties: function () {
            var self = this;
            this.options.mapProperties.bind("change:displayOrphans", this.update, this);
            this.options.mapProperties.get("categories").each(function(category){
                category.bind("change", self.update, self);
            });
            this.options.mapProperties.bind("change:displayOrphans", this.update, this);
            this.options.mapProperties.bind("change:displayTopologyErrors", this.updateRenderTopologyErrors, this);
            this.options.mapProperties.get("position").each(function (position) {
                position.bind("change", self.updateRenderGroupByPosition, self);
            });
        },
        unbindMapProperties: function () {
            this.options.mapProperties.unbind("change");
        },