custom validation using parsleyjs

parsely_custom_validator.js

var parseDate = function(s) {
        var re = /^(\d\d)-(\d\d)-(\d{4}) (\d\d):(\d\d):(\d\d)$/;
        var m = re.exec(s);
        return m ? new Date(m[3], m[2]-1, m[1], m[4], m[5], m[6]) : null;
    };
    window.ParsleyValidator
            .addValidator('checkEndDate', function (value, requirement) {
                var endDate = new Date(parseDate(value).toString());
                var startDate = new Date(parseDate($(requirement).val()).toString());
                return Date.parse(startDate) <= Date.parse(endDate);
            }, 32)
            .addMessage('en', 'checkEndDate', 'End date cannot be less than Start date')
            .addValidator('checkStartDate', function (value, requirement) {
                var startDate = new Date(parseDate(value).toString());
                var endDate = new Date(parseDate($(requirement).val()).toString());
                return Date.parse(startDate) <= Date.parse(endDate);
            }, 32)
            .addMessage('en', 'checkStartDate', 'Start date cannot be less than End date');