outside click jquery

gistfile1.txt

(function($){
    $.fn.outside = function(ename, cb){
        return this.each(function(){
            var $this = $(this),
            self = this;
            $(document.body).bind(ename, function tempo(e){
                if(e.target !== self && !$.contains(self, e.target)){
                    cb.apply(self, [e]);
                    if(!self.parentNode) $(document.body).unbind(ename, tempo);
                }
            });
        });
    };
}(jQuery));

$('.selector-dropdown').outside('click', function(e) {
    $('.selector.active').removeClass('active');
});