Custom Tablesorter parser for Estonian date formats (dd.mm.YYYY)

plugins.js

// Custom date format parser for Estonian  for the Tablesorter(.com) jQuery plugin
    $.tablesorter.addParser({
        id:'estDate',
        is:function (s) {
            return /\d{1,2}[\/\-\.]\d{1,2}[\/\-\.]\d{2,4}/.test(s);
        },
        format:function (s, table) {
            var c = table.config;
            s = s.replace(/\-/g, '/');

            s = s.replace(/(\d{1,2})\.(\d{1,2})\.(\d{4})/, '$3/$2/$1');

            return $.tablesorter.formatFloat(new Date(s).getTime());
        },
        type:'numeric'
    });