I found this getComputedStyle polyfill in a JavaScript plugin

if (!computed) {

  window.getComputedStyle = function(el) {

    this.el = el;

    this.getPropertyValue = function(prop) {

      var re = /(-([a-z]){1})/g;

      if (prop === float) {

        prop = styleFloat;

      }

      if (re.test(prop)) {

        prop = prop.replace(re, function () {

          return arguments[2].toUpperCase();

        });

      }

      return el.currentStyle[prop] ? el.currentStyle[prop] : null;

    };

    return this;

  };

}

Is there any jQuery equivalent for getcomputedstyle();