/*! * jQuery Sample Plugin * * http://saquery.com * */ (function(){ $.fn.setBorderStyle = function( settings ) { var _defaults = { 'border':'solid 1px black', 'color':'red' }, _config = $.extend(_defaults, settings), _ = $(this); return _.each(function(i,n) { $(this).css(_config); }); }; })(jQuery); $(function(){ $('div').setBorderStyle(); }) Test 1 : Invoke setBorderStyle with default settings. $('div').setBorderStyle(); Invoke "Test 1" [...]