JavaScript: jQuery: plugin template

gistfile1.js

(function($) {
    $.fn.<PLUGIN_NAME> = function(settings) {
        //default values
        var config = {
        };
        //using user defined values
        if (settings) $.extend(config, settings);

        //single element 
//        var element = this;
        
	// iterate over matched elements
        return this.each(function() {
            // implementations
        });
    };

    // public functions definition
    $.fn.pluginName.functionName = function(foo) {
        return this;
    };

    // private functions definition
    function foobar() {}
})(jQuery);