docs: function (domElt, color) {
              this.clearHightlight();
              color = color ? color : "#ACC2FF";
              var pos = this.bridge.getAriaPackage().utils.Dom.calculatePosition(domElt);
              var marker = this.bridge.getDocument().createElement('div');
              marker.style.cssText = ["position:absolute;top:", pos.top, "px;left:", pos.left, "px;width:",
                      ((domElt.offsetWidth - 8 > 0) ? domElt.offsetWidth - 8 : 0), "px;height:",
                      ((domElt.offsetHeight - 8 > 0) ? domElt.offsetHeight - 8 : 0),
                      "px; border:dashed 4px " + color + ";z-index: 999999999999999;z-index: 999999999999999;"].join('');
              this._holder.appendChild(marker);
              marker = null;
              this._hideTimeout = setTimeout(aria.utils.Function.bind(this.clearHightlight, this), 2000);
          }