gistfile1.js

function reloadCSS() {
  var d = (new Date()).getTime();
  $('link[rel=stylesheet]').each(function (i, el) {
    var href = $(el).attr('href');
    if (href.indexOf('?') === -1) {
      href += '?_=' + d;
    } else {
      if (href.indexOf('_=') === -1) {
        href += '&_=' + d;
      } else {
        href = href.replace( /(\_\=[\d+])/ig, '_=' + d);
      }
    }
    $(el).attr('href', href);
  });
}