posting json with jquery....

jq-ajax-post.js

                  var data = {};

                  var options = {};
                  options.type = 'POST';
                  options.url = url;
                  options.dataType = 'json';
                  options.cache = false;
                  options.data = jq.toJSON(data);
                  options.contentType = 'application/json; charset=utf-8';
                  options.success = function(){};
                  jq.ajax(ajax);