form is serialized into json object, json array

/**
 * Processing of submitted json data
 */
//form serialization, convert to a single json object
$.fn.serializeObject = function()    
{    
   var o = {};    
   var a = this.serializeArray();    
   $.each(a, function() {    
       if (o[this.name]) {    
           if (!o[this.name].push) {    
               o[this.name] = [o[this.name]];    
           }    
           o[this.name].push(this.value || '');    
       } else {    
           o[this.name] = this.value || '';    
       }    
   });    
   return o;    
};  

//form serialization, convert to json list
$.fn.serializeJson = function(){
    var jsonData1 = {};
    var serializeArray = this.serializeArray();
    // 先转换成{"id": ["12","14"], "name": ["aaa","bbb"], "pwd":["pwd1","pwd2"]}这种形式
    $(serializeArray).each(function () {
        if (jsonData1[this.name]) {
            if ($.isArray(jsonData1[this.name])) {
                jsonData1[this.name].push(this.value);
            } else {
                jsonData1[this.name] = [jsonData1[this.name], this.value];
            }
        } else {
            jsonData1[this.name] = this.value;
        }
    });
    // 再转成[{"id": "12", "name": "aaa", "pwd":"pwd1"},{"id": "14", "name": "bb", "pwd":"pwd2"}]的形式
    var vCount = 0;
    // Calculate the maximum length of the array inside the json
    for(var item in jsonData1){
        var tmp = $.isArray(jsonData1[item]) ? jsonData1[item].length : 1;
        vCount = (tmp > vCount) ? tmp : vCount;
    }

    if(vCount > 1) {
        var jsonData2 = new Array();
        for(var i = 0; i < vCount; i++){
            var jsonObj = {};
            for(var item in jsonData1) {
                jsonObj[item] = jsonData1[item][i];
            }
            jsonData2.push(jsonObj);
        }
        return JSON.stringify(jsonData2);
    }else{
        return "[" + JSON.stringify(jsonData1) + "]";
    }
};