code: function(el, attr, val, ieAttr) {
          if (el && el.setAttribute) {
              attr = Y.DOM.CUSTOM_ATTRIBUTES[attr] || attr;
              el.setAttribute(attr, val, ieAttr);
          }
      }
docs: Provides a normalized attribute interface.
  @method setAttibute
  @param {String | HTMLElement} el The target element for the attribute.
  @param {String} attr The attribute to set.
  @param {String} val The value of the attribute.