code: function(value) {
  			if (Lang.isNumber(value)) {
  				value += 'px';
  			}
  			this.setStyle(WIDTH,value);
  			this._fixEdges();
  			this.redraw();
  		}
docs: Method called when the height attribute is changed
  @method _widthChange
  @param {int or string} value New width, in pixels if int or string including units
  @return void
  @private