// constructor
function Validator() {
    //if (!hasSupport()) return;
}

Validator.prototype.notEmpty = function (str) {
    return ('' != str && !this.isWhiteSpace(str));
}

Validator.prototype.isEmpty = function (str) {
    return ('' == str || this.isWhiteSpace(str));
}

Validator.prototype.isDigits = function (str) {
    return this.isRegex(str, /^\d+$/);
}

Validator.prototype.isInt = function (str) {
    return this.isRegex(str, /^[-+]?\d+$/);
}

Validator.prototype.isAlpha = function (str) {
    return this.isRegex(str, /^[A-Za-z]+$/);
}

Validator.prototype.isDate = function (str) {
    return this.isRegex(str, /^\d{2}[\/,\-.]?\d{2}[\/,\-.]?\d{4}$/);
}

Validator.prototype.isCurrency = function (str) {
    return this.isRegex(str, /^\d+[.,]?\d*$/);
}

Validator.prototype.isAlnum = function (str) {
    return this.isRegex(str, /^[A-Za-z\d]+$/);
}

Validator.prototype.isBetween = function (str, min, max) {
    if (!this.isInt(str)) {
        return false;
    }

    if (!this.isGreaterThan(str, max)
		&& !this.isLessThan(str, min)
	) {
        return true;
    } else {
        return false;
    }
}

Validator.prototype.isGreaterThan = function (str, min) {
    if (!this.isInt(str)) {
        return false;
    }

    integer = parseInt(str);

    return (integer > min);
}

Validator.prototype.isLessThan = function (str, max) {
    if (!this.isInt(str)) {
        return false;
    }

    integer = parseInt(str);

    return (integer < max);
}

Validator.prototype.isLength = function (str, min, max) {
    return (this.isMinLength(str, min) && this.isMaxLength(str, max));
}

Validator.prototype.isMinLength = function (str, min) {
    return (str.length >= min);
}

Validator.prototype.isMaxLength = function (str, max) {
    return (str.length <= max);
}

Validator.prototype.isRegex = function (str, pattern) {
    str += '';
    var found = str.match(pattern);

    if (!found) {
        return false;
    }

    return true;
}

Validator.prototype.isIp = function (ipAddress) {
    return this.isRegex(ipAddress, /^(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})(\.(25[0-5]|2[0-4]\d|1\d\d|\d{1,2})){3}$/);
}

Validator.prototype.isDomain = function (domainName) {
    if (this.isEmpty(domainName)
		|| this.isEqual(domainName, 'localhost.rev')
		|| this.isRegex(domainName, /\.in-addr.arpa$/)
		|| this.isRegex(domainName, / /)
		|| this.isIp(domainName)
	) {
        return false;
    } else {
        return true;
    }
}

Validator.prototype.isHostname = function (host) {
    if (this.isIp(host)
		|| this.isDomain(host)
	) {
        return true;
    } else {
        return false;
    }
}

Validator.prototype.isMailName = function (mailName) {
    return this.isRegex(mailName, /^[\w-\+]+((\.)[\w-\+]+)*$/);
}

Validator.prototype.isEmail = function (email) {
    re = /^([^\@]+){1}\@([^\@]+){1}$/;
    found = email.match(re);

    if (!found) {
        return false;
    }

    return (this.isMailName(found[1]) && this.isDomain(found[2]));
}

Validator.prototype.isUrl = function (url) {
    re = /^(.+){1}:\/\/(.+){1}$/
    found = url.match(re);

    if (!found) {
        return false;
    }

    return (this.isAlnum(found[1]) && this.isHostname(found[2]));

}

Validator.prototype.isHttpUrl = function (url) {
    return (this.isUrl(url) && this.isRegex(url, /^https?:(.+)$/));
}

Validator.prototype.isPath = function (path) {
    return this.isRegex(path, /^[A-Za-z\d\\\\\/\%^&*()+=\-_\[\]{}\'?\.,<>:;|!\@#]+$/);
}

Validator.prototype.isPhone = function (path) {
    return this.isRegex(path, /^[ \d\-+()]+$/);
}

Validator.prototype.isEqual = function (str1, str2) {
    return (str1 == str2);
}

Validator.prototype.isWhiteSpace = function (str) {
    return this.isRegex(str, /^[\s]+$/);
}

Validator.prototype.isFloat = function (str, decimalPoint) {
    decimalPoint += '';
    decimalPoint = decimalPoint.replace(/\./ig, '\\.');
    re = '/^[-+]?\\d*(' + decimalPoint + '\\d+)?$/';
    eval('var result = this.isRegex(str, ' + re + ');');
    return result;
}

Validator.prototype.isLogin = function (str) {
    return this.isRegex(str, /^[-a-zA-Z0-9@#+&._]+$/);
}

SB_Validator = new Validator();