//  -------------------------------------------------------------
//  AlterLogic javascript library
//      v1.0.3
// 
//      ---------------------------------------------------------
//      History
//
//      * 2011.06.30 BW: added string extensions
//      * 2011.08.01 BW: added string formatter
//  -------------------------------------------------------------


// --------------------------------------------------------------
//  Validation

(function($) {

    $.fn.validEmail = function() {

        var valid = true;
        var pattern = /^.+@[^\.].*\.[a-z]{2,}$/i; //a valid email address, generously defined
        this.each(
        function() {
            //alert($(this).val());
            valid = valid && pattern.test($(this).val());
        });

        return valid;

    };

})(jQuery);

(function($) {

    $.fn.validPhone = function() {

        var valid = true;
        var pattern = /^(((\(\d{3}\)|\d{3})( |-|\.))|(\(\d{3}\)|\d{3}))?\d{3}( |-|\.)?\d{4}(( |-|\.)?([Ee]xt|[Xx])[.]?( |-|\.)?\d{4})?$/i; //a valid US phone number
        this.each(
        function() {
            //alert($(this).val());
            valid = valid && pattern.test($(this).val());
        });

        return valid;

    };

})(jQuery);

(function($) {

    $.fn.validCCNum = function() {

        //  http://www.brainjar.com/js/validation/default2.asp
        var i, n, c, r, t;
        var s = $(this).val();

        // First, reverse the string and remove any non-numeric characters.
        r = "";
        for (i = 0; i < s.length; i++) {
            c = parseInt(s.charAt(i), 10);
            if (c >= 0 && c <= 9)
                r = c + r;
        }

        // Check for a bad string.
        if (r.length <= 1)
            return false;

        // Now run through each single digit to create a new string. Even digits
        // are multiplied by two, odd digits are left alone.
        t = "";
        for (i = 0; i < r.length; i++) {
            c = parseInt(r.charAt(i), 10);
            if (i % 2 != 0)
                c *= 2;
            t = t + c;
        }

        // Finally, add up all the single digits in this string.
        n = 0;
        for (i = 0; i < t.length; i++) {
            c = parseInt(t.charAt(i), 10);
            n = n + c;
        }

        // If the resulting sum is an even multiple of ten (but not zero), the
        // card number is good.
        if (n != 0 && n % 10 == 0)
            return true;
        else
            return false;
    };

})(jQuery);

// --------------------------------------------------------------
//  String extensions

String.prototype.trim = function() {
    return this.replace(/^\s+|\s+$/g, "");
};

String.prototype.ltrim = function() {
    return this.replace(/^\s+/, "");
};

String.prototype.rtrim = function() {
    return this.replace(/\s+$/, "");
};

String.prototype.number_format = function (decimals, dec_point, thousands_sep, currency_sym)
{
    return number_format(this, decimals, dec_point, thousands_sep, currency_sym);
};

function number_format(number, decimals, dec_point, thousands_sep, currency_sym)
{
    // Formats a number with grouped thousands  
    // 
    // version: 1103.1210
    // discuss at: http://phpjs.org/functions/number_format
    // +   original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +     bugfix by: Michael White (http://getsprink.com)
    // +     bugfix by: Benjamin Lupton
    // +     bugfix by: Allan Jensen (http://www.winternet.no)
    // +    revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +     bugfix by: Howard Yeend
    // +    revised by: Luke Smith (http://lucassmith.name)
    // +     bugfix by: Diogo Resende
    // +     bugfix by: Rival
    // +      input by: Kheang Hok Chin (http://www.distantia.ca/)
    // +   improved by: davook
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +      input by: Jay Klehr
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +      input by: Amir Habibi (http://www.residence-mixte.com/)
    // +     bugfix by: Brett Zamir (http://brett-zamir.me)
    // +   improved by: Theriault
    // +      input by: Amirouche
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // *     example 1: number_format(1234.56);
    // *     returns 1: '1,235'
    // *     example 2: number_format(1234.56, 2, ',', ' ');
    // *     returns 2: '1 234,56'
    // *     example 3: number_format(1234.5678, 2, '.', '');
    // *     returns 3: '1234.57'
    // *     example 4: number_format(67, 2, ',', '.');
    // *     returns 4: '67,00'
    // *     example 5: number_format(1000);
    // *     returns 5: '1,000'
    // *     example 6: number_format(67.311, 2);
    // *     returns 6: '67.31'
    // *     example 7: number_format(1000.55, 1);
    // *     returns 7: '1,000.6'
    // *     example 8: number_format(67000, 5, ',', '.');
    // *     returns 8: '67.000,00000'
    // *     example 9: number_format(0.9, 0);
    // *     returns 9: '1'
    // *    example 10: number_format('1.20', 2);
    // *    returns 10: '1.20'
    // *    example 11: number_format('1.20', 4);
    // *    returns 11: '1.2000'
    // *    example 12: number_format('1.2000', 3);
    // *    returns 12: '1.200'
    // *    example 13: number_format('1 000,50', 2, '.', ' ');
    // *    returns 13: '100 050.00'
    // Strip all characters but numerical ones.
    number = (number + '').replace(/[^0-9+\-Ee.]/g, '');
    var n = !isFinite(+number) ? 0 : +number,
                prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
                sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
                dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
                cur = (typeof currency_sym === 'undefined') ? '' : currency_sym,
                s = '',
                toFixedFix = function (n, prec)
                {
                    var k = Math.pow(10, prec);
                    return '' + Math.round(n * k) / k;
                };
    // Fix for IE parseFloat(0.55).toFixed(0) = 0;
    s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.');
    if (s[0].length > 3)
    {
        s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep);
    }
    if ((s[1] || '').length < prec)
    {
        s[1] = s[1] || '';
        s[1] += new Array(prec - s[1].length + 1).join('0');
    }
    var ret = cur + s.join(dec);
    if (n < 0)
    {
        ret = '(' + ret.replace(/-/g, '') + ')';
    }
    return ret;
};


// --------------------------------------------------------------
//  NHS specific custom functions