// http://jqueryvalidation.org/email-method/
        email: function (value, element) {
            // From http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#e-mail-state-%28type=email%29
            // Retrieved 2014-01-14
            // If you have a problem with this implementation, report a bug against the above spec
            // Or use custom methods to implement your own email validation

            // this regex does not support ' in email.
            //return this.optional(element) || /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/.test(value);

            // we using C# version of regex.
            return this.optional(element) || /^[-!#$%&'*+\/0-9=?A-Z^_a-z{|}~](\.?[-!#$%&'*+\/0-9=?A-Z^_a-z`{|}~])*@[a-zA-Z0-9](-?\.?[a-zA-Z0-9])*\.[a-zA-Z](-?[a-zA-Z0-9])+$/.test(value);
        },

        // http://jqueryvalidation.org/url-method/
        url: function( value, element ) {
            // contributed by Scott Gonzalez: http://projects.scottsplayground.com/iri/
            return this.optional( element ) || /^(https?|s?ftp):\/\/(((([a-z]|\d|-|\.|_|~|[ -퟿豈-﷏ﷰ-￯])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[ -퟿豈-﷏ﷰ-￯])|(([a-z]|\d|[ -퟿豈-﷏ﷰ-￯])([a-z]|\d|-|\.|_|~|[ -퟿豈-﷏ﷰ-￯])*([a-z]|\d|[ -퟿豈-﷏ﷰ-￯])))\.)+(([a-z]|[ -퟿豈-﷏ﷰ-￯])|(([a-z]|[ -퟿豈-﷏ﷰ-￯])([a-z]|\d|-|\.|_|~|[ -퟿豈-﷏ﷰ-￯])*([a-z]|[ -퟿豈-﷏ﷰ-￯])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[ -퟿豈-﷏ﷰ-￯])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[ -퟿豈-﷏ﷰ-￯])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[ -퟿豈-﷏ﷰ-￯])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[-]|\/|\?)*)?(#((([a-z]|\d|-|\.|_|~|[ -퟿豈-﷏ﷰ-￯])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test( value );
        },

        // http://jqueryvalidation.org/date-method/
        date: function( value, element ) {
            return this.optional( element ) || !/Invalid|NaN/.test( new Date( value ).toString() );
        },

        // http://jqueryvalidation.org/dateISO-method/
        dateISO: function( value, element ) {
            return this.optional( element ) || /^\d{4}[\/\-](0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])$/.test( value );
        },

        alphanumeric: function (value, element) {
            return this.optional(element) || new RegExp(/^[0-9a-zA-Z]*$/).test(value);
        },

		// http://jqueryvalidation.org/number-method/
		number: function( value, element ) {
			return this.optional( element ) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)?(?:\.\d+)?$/.test( value );
		},

		// http://jqueryvalidation.org/digits-method/
		digits: function( value, element ) {
			return this.optional( element ) || /^\d+$/.test( value );
		},

		// http://jqueryvalidation.org/creditcard-method/
		// based on http://en.wikipedia.org/wiki/Luhn/
		creditcard: function( value, element ) {
			if ( this.optional( element ) ) {
				return "dependency-mismatch";