tablesorter plugin
    Docs:  http://tablesorter.com/docs/
    Load after jquery*.js:
      <script type="text/javascript" src="http://tablesorter.com/jquery.tablesorter.js"></script>
    Requires both thead and tbody tags.
    Does no decoration whatsoever by default.
    Normally want to stripe rows by default, so set widget option to ["zebra"]:
        jo.tablesorter({widgets: ["zebra"]});
    STYLING
        Assign target tables class of "tablesorter".
        Load:
          <link rel="stylesheet" href="http://tablesorter.com/themes/<COLOR>/style.css">
        where <COLOR> is blue or green


develop plugin.  I.e. implement a new method:  jo.myPlugin(...)
    Implement function:
        jQuery.fn.myPlugin = function(options) {
            var settings = jQuery.extend({ opt1: dfltVal1,...}, options);
            return this.each(function() { ... use settings.opt1...
            // Or do whatever then return 'this'.
        }