(function ($) {
   var m = {
           '\b': '\\b',
           '\t': '\\t',
           '^n': '\\n',
           '\f': '\\f',
           '\r': '\\r',
           '"' : '\\"',
           '\\': '\\\\'
       },
       s = {
           'array': function (x) {
               var a = ['['], b, f, i, l = x.length, v;
               for (i = 0; i < l; i += 1) {
                   v = x[i];
                   f = s[typeof v];
                   if (f) {
                       v = f(v);
                       if (typeof v == 'string') {
                           if (b) {
                               a[a.length] = ',';
                           }
                           a[a.length] = v;
                           b = true;
                       }
                   }
               }
               a[a.length] = ']';
               return a.join('');
           },
           'boolean': function (x) {
               return String(x);
           },
           'null': function (x) {
               return "null";
           },
           'number': function (x) {
               return isFinite(x) ? String(x) : 'null';
           },
           'object': function (x) {
               if (x) {
                   if (x instanceof Array) {
                       return s.array(x);
                   }
                   var a = ['{'], b, f, i, v;
                   for (i in x) {
                       v = x[i];
                       f = s[typeof v];
                       if (f) {
                           v = f(v);
                           if (typeof v == 'string') {
                               if (b) {
                                   a[a.length] = ',';
                               }
                               a.push(s.string(i), ':', v);
                               b = true;
                           }
                       }
                   }
                   a[a.length] = '}';
                   return a.join('');
               }
               return 'null';
           },
           'string': function (x) {
               if (/["\\\x00-\x1f]/.test(x)) {
                   x = x.replace(/([\x00-\x1f\\"])/g, function(a, b) {
                       var c = m[b];
                       if (c) {
                           return c;
                       }
                       c = b.charCodeAt();
                       return '\\u00' +
                           Math.floor(c / 16).toString(16) +
                           (c % 16).toString(16);
                   });
               }
               return '"' + x + '"';
           }
       };

   $.toJSON = function(v) {
       var f = isNaN(v) ? s[typeof v] : s['number'];
       if (f) return f(v);
   };
     $.parseJSON = function(v, safe) {
       if (safe === undefined) safe = $.parseJSON.safe;
       var exp = new RegExp('/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/');
       if (safe && !exp.test(v)) return undefined;
       return eval('('+v+')');
   };
     $.parseJSON.safe = false;

})(jQuery);