code: function(inClass) {
  		if (inClass && !this.hasClass(inClass)) {
  			var c = this.getClassAttribute();
  			this.setClassAttribute(c + (c ? " " : "") + inClass);
  		}
  	}
docs: Adds CSS class name _inClass_ to the _class_ attribute of this object.
  
  add the highlight class to this object
  this.addClass("highlight");