function clickrememberme(Obj_Remember){
    var objName,objValue,objHours;
    objName="useremail";
    objValue=window.document.loginForm.email.value;  //document.getElementById("email").value;
    objHours=1440;
    if (Obj_Remember.checked == true){
        addCookie(objName,objValue,objHours);
    }else{
        delCookie(objName);
    }
}

function readrememberme(){
    var objName,objValue;
    objName="useremail";
    var ck = getCookie(objName);
    if(ck == "undefined") 
    {
        return "";
    }
    return ck;
}

function addCookie(objName,objValue,objHours){//添加cookie
    var str = objName + "=" + escape(objValue);
    if(objHours > 0){//为0时不设定过期时间，浏览器关闭时cookie自动消失
        var date = new Date();
        var ms = objHours*3600*1000;
        date.setTime(date.getTime() + ms);
        str += "; expires=" + date.toGMTString();
    }
    document.cookie = str;
    //alert("添加cookie成功");
}

function getCookie(objName){//获取指定名称的cookie的值
    var arrStr = document.cookie.split("; ");
    for(var i = 0;i < arrStr.length;i ++){
        var temp = arrStr[i].split("=");
        if(temp[0] == objName) return unescape(temp[1]);
    } 
}

function delCookie(name){//为了删除指定名称的cookie，可以将其过期时间设定为一个过去的时间
    var date = new Date();
    date.setTime(date.getTime() - 10000);
    document.cookie = name + "=a; expires=" + date.toGMTString();
}

function allCookie(){//读取所有保存的cookie字符串
    var str = document.cookie;
    if(str == ""){
        str = "没有保存任何cookie";
    }
    //alert(str);
}

function $(m,n){
    return document.forms[m].elements[n].value;
}

function add_(){
    var cookie_name = $("myform","cookie_name");
    var cookie_value = $("myform","cookie_value");
    var cookie_expireHours = $("myform","cookie_expiresHours");
    addCookie(cookie_name,cookie_value,cookie_expireHours);
}

function get_(){
    var cookie_name = $("myform","cookie_name");
    var cookie_value = getCookie(cookie_name);
    //alert(cookie_value);
}

function del_(){
    var cookie_name = $("myform","cookie_name");
    delCookie(cookie_name);
    //alert("删除成功");
}