把表单转成json,并且name为key,value为值

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 || '';
         }
     });