http://jsfiddle.net/sxGtM/3/

http://stackoverflow.com/questions/1184624/convert-form-data-to-js-object-with-jquery

/*把表单转成json,并且name为key,value为值*/ $.fn.serializeObject = function() {     var o = {};     var a = this.serializeArray();     $.each(a, function() {         if (o[this.name] !== undefined){             if (!o[this.name].push) {                 o[this.name] = [o[this.name]];             }             o[this.name].push(this.value || '');         } else {             o[this.name] = this.value || '';         }     });