allback: function($elm){
                        this.$alpha = $elm.find('.cp-alpha');
                    },
                    renderCallback: function ($elm, toggled) {
                        if (toggled === true) { // on show colorPicker
                            this.$alpha.toggle(!$elm.hasClass('no-alpha'));
                        } else {
                            var el = $elm.get(0);
                            // complex color information
                            var colors = this.color.