bonzo - convert .data() from a DOM element into URL encoded string (as with ".param()" in jQuery)

gistfile1.js

/*
Takes data elements from an HTML tag and converts to a URL encoded string.
*/

bonzo.aug({
    param: function () {
      var str = [];
      obj = this.data();
      for(var p in obj)
         str.push(p + "=" + encodeURIComponent(obj[p]));
      return str.join("&");
    }
})

/*

example:
  <a href="#" data-color="red" data-size="small">Car</a>
  bonzo(qwery('a')).param()

  Note: I am used qwery for DOM selectors.

returns:
  "color=red&size=small"

*/