code: function(val) {
  			if (!_.isUndefined(val) && this._value !== (val = String(val))) {
  				this.parent._updateSource(val, this.valueRange());
  				this._value = val;
  			}
  			
  			return this._value;
  		}
docs: Sets of gets element value
  @param {String} val New element value. If not passed, current
  value is returned
  @returns {String}