js的一些工具类（持续更新）

1. [代码][JavaScript]代码    

//写入cookie
function setCookie(name, value) {
    var Days = 30; //此 cookie 将被保存 30 天
    var exp = new Date();
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
}

///删除cookie
function delCookie(name) {
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval = getCookie(name);
    if (cval != null) document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
}

//读取cookie
function getCookie(name) {
    var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
    if (arr != null)
        return unescape(arr[2]);
    return null;
}

//===================== cookie相关 end ======================== //


//===================== form 表单 序列化 插件 相关 beign ======================== //

var $ = jQuery;
(function($){
    $.fn.serializeJson=function(){
        var serializeObj={};
        var array=this.serializeArray();
        var str=this.serialize();
        $(array).each(function(){
            if(serializeObj[this.name]){
                if($.isArray(serializeObj[this.name])){
                    serializeObj[this.name].push(this.value);
                }else{
                    serializeObj[this.name]=[serializeObj[this.name],this.value];
                }
            }else{
                serializeObj[this.name]=this.value;
            }
        });
        return serializeObj;
    };
})(jQuery);

//===================== form 表单 序列化 插件 相关 end ======================== //


//===================== 回车触发 子页面 查询事件 相关 beign ======================== //
// 主框架页上增加 回车触发frame子页 查询动作 (仅当子页面有 .btnSearch的按钮时才触发)
jQuery(window.document).keyup(function (event) {
    if(event.which == '13') {
        var jBtn = jQuery(".btnSearch");
        if (jBtn.length > 0) {
            jBtn.click();
        }
    }
});

2. [代码]给全局js中new Data()添加方法    

//=====================日期格式化 相关 beign ======================== //
Date.prototype.format = function (format) {
    var o = {
        "M+": this.getMonth() + 1, //month
        "d+": this.getDate(),   //day
        "h+": this.getHours(),  //hour
        "m+": this.getMinutes(), //minute
        "s+": this.getSeconds(), //second
        "q+": Math.floor((this.getMonth() + 3) / 3), //quarter
        "S": this.getMilliseconds() //millisecond
    }
    if (/(y+)/.test(format)) format = format.replace(RegExp.$1,
        (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)if (new RegExp("(" + k + ")").test(format))
        format = format.replace(RegExp.$1,
            RegExp.$1.length == 1 ? o[k] :
                ("00" + o[k]).substr(("" + o[k]).length));
    return format;
}

Date.prototype.add = function (strInterval, Number) {
    var dtTmp = this;
    switch (strInterval) {
        case 's' :
            return new Date(Date.parse(dtTmp) + (1000 * Number));
        case 'n' :
            return new Date(Date.parse(dtTmp) + (60000 * Number));
        case 'h' :
            return new Date(Date.parse(dtTmp) + (3600000 * Number));
        case 'd' :
            return new Date(Date.parse(dtTmp) + (86400000 * Number));
        case 'w' :
            return new Date(Date.parse(dtTmp) + ((86400000 * 7) * Number));
        case 'q' :
            return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number * 3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'm' :
            return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'y' :
            return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
    }
}
//=====================日期格式化 相关 end ======================== //