javascript表单域与json数据间的交互

/*
* jQuery Ajax By Name Plugin
*
* licensed under the MIT licenses:
* http://www.opensource.org/licenses/mit-license.php
*
* Author achun (achun.shx at gmail.com)
* Create Date: 2008-6-21
* Last Date: 2008-6-21
* Revision:2.8.6.21
*/
(function($) {
/**
* 获取鼠标点击的元素坐标
*/
$.fn.clickPos = function(e){
var pos ={x:0,y:0};
if (e.offsetX != undefined) {
pos.x = e.offsetX;
pos.y = e.offsetY;
} else if (typeof $.fn.offset == 'function') {
var offset = this.offset();
pos.x = e.pageX - offset.left;
pos.y = e.pageY - offset.top;
} else {
pos.x = e.pageX - this[0].offsetLeft;
pos.y = e.pageY - this[0].offsetTop;
}
return pos;
}
/**
* ajaxName() 根据标签name属性来提交数据,替代form提交方式
* options:{//与ajax的options是一样的结构
* data:{}//要附加提交的数据
* }
* successful:如果元素有有效值,defualt:true
*/
$.fn.ajaxName = function(options,successful) {
if(options==undefined) options={};
options.data = options.data || {};
successful = successful == undefined ? true:successful;
var data = {};
var name= options.name || '';
this.each(function() {
var el=this,o=$(this),n = o.attr('name'),hasval = o.attr('value')!=undefined;
if (!n) return;
var t = el.type, tag = el.tagName.toLowerCase();
if (n=='/'){
if (name=='') name = hasval?o.attr('value'):o.text();
return;
}
if (successful && (el.disabled || t == 'reset' || t == 'button' ||
(t == 'checkbox' || t == 'radio') && !el.checked ||
(t == 'submit' || t == 'image') ||
tag == 'select' && el.selectedIndex == -1))
return;
var v= hasval? o.attr('value') :o.hasClass('ValueByText')?o.text():o.html();
if (v == undefined) return;
if (n.indexOf('.')>0){
n=n.split('.');
var len=n.length - 1;
var b=data;
$.each(n,function(i){
if (i!=len){
if(b[this] == undefined) b[this]={};
b=b[this];
}else
b[this]=v;
});
}else if (n.indexOf('[]')>0){
n=n.slice(0,n.length-2);
if(data[n] == undefined) data[n]=[];
data[n].push(v);
}else{
data[n]=v;
}
});
var dat={};
if (name){
dat[name]=data;
data=dat[name];
}else
dat=data;
for (var o in options.data){
data[o]=options.data[o];
};
options.data=dat;
return options.data;
};
})(jQuery);