Put a border on a jQuery element or two

jQuery.outline.js

(function ($) {
    $.fn.outline = function(options) {
        var settings = $.extend({
            borderWidth: "1px",
            borderStyle: "solid",
            borderColor: "red"
        }, options);

        return this.css({
            borderWidth: settings.borderWidth,
            borderStyle: settings.borderStyle,
            borderColor: settings.borderColor
        });
    };
}(jQuery));

Usage:

elements.outline();
elements.outline({borderColor: "green"});
elements.outline({borderWidth: "10px", borderStyle: "dashed", borderColor: "hotpink"}); // although that's just silly