code: function( element ) {
  			/// <summary>
  			/// Validates a single element, returns true if it is valid, false otherwise.
  			/// This behaves as validation on blur or keyup, but returns the result.
  			/// </summary>
  			/// <param name="element" type="Selector">
  			/// An element to validate, must be inside the validated form.
  			/// </param>
  			/// <returns type="Boolean" />
  
  			element = this.clean( element );
  			this.lastElement = element;
  			this.prepareElement( element );
  			this.currentElements = $(element);
  			var result = this.check( element );
  			if ( result ) {
  				delete this.invalid[element.name];
  			} else {
  				this.invalid[element.name] = true;
  			}
  			if ( !this.numberOfInvalids() ) {
  				// Hide error containers on last error
  				this.toHide = this.toHide.add( this.containers );
  			}
  			this.showErrors();
  			return result;
  		}
docs: http://docs.jquery.com/Plugins/Validation/Validator/element