/*	
双日历控件 ziqiu.zhang 2007.11.5日 
改版自elong.com 原单日历控件
增加了对XHtml的支持.
*/
document.write('<iframe id=CalFrame name=CalFrame frameborder=0 src=/CommonPage/calendar.htm style=display:none;position:absolute;z-index:110></iframe>');
document.onclick = hideCalendar;

function StringToDate(DateStr) {

    var converted = Date.parse(DateStr);
    var myDate = new Date(converted);
    if (isNaN(myDate)) {
        //var delimCahar = DateStr.indexOf('/')!=-1?'/':'-';   
        var arys = DateStr.split('-');
        myDate = new Date(arys[0], --arys[1], arys[2]);
    }
    return myDate;
}
function $(s) { if (document.getElementById) { return eval('document.getElementById("' + s + '")'); } else { return eval('document.all.' + s); } }
function addDate(date, numDay) { var time = date.getTime(); var newTime = time + numDay * 24 * 60 * 60 * 1000; return new Date(newTime); }
function DateDemo(newdate) { var dy = newdate.getFullYear(); var dm = newdate.getMonth() + 1; if (String(dm).length == 1) { dm = "0" + dm; } var dd = newdate.getDate(); if (String(dd).length == 1) { dd = "0" + dd; } return (dy + '-' + dm + '-' + dd); }

//1.sFld取得日期的控件名称 2.num日期加减数
function GetDate(sFld, num) {
    var dt = new Date();
    $(sFld).value = DateDemo(addDate(dt, num));
}

//产生新的日期 oldDate:原来日期  num:变化天数
function GetNewDate(oldDate, num) {
    var dt = StringToDate(oldDate);
    return DateDemo(addDate(dt, num));
}

//显示代月月初日期
function GetDate1(sFld) {
    var dt = new Date();
    var time = dt.getTime(); //秒   
    var newdate = new Date(time);
    var dds = newdate.getDate() - 1;
    var newTime = time - dds * 24 * 60 * 60 * 1000;
    newdate = new Date(newTime);
    $(sFld).value = DateDemo(newdate);
}

function showCalendar(sImg, bOpenBound, sFld1, sNextP, sNextD, sStartD, sEndD, sVD, sOE, sVDE, sOT, s3F, sFld2, sCallback, sNextVDE, sFakeToday) {
    //1.sImg日历弹出位置的控件的名称,
    //2.bOpenBound,
    //3.sFld1取得日期的控件名称,


    //4.sNextP选取日期后新日历弹出的位置的控件名称,可不输入,
    //5.sNextD选取日期后新日历弹出从中取值的控件名称,可不输入,

    //6.sStartD开始有效时间,
    //7.sEndD截至有效时间,

    //8.sVD周几有效,例如：'1,3,5',注意星期日应输入'0'
    //9.sOE,单双日有效,'0'表示双日,'1'表示单日
    //10.sVDE特殊日期,例如'2004-10-11,2004-11-20,',最后一定要输入','
    //11.sOT如果是直接在文本框中点击则值为'text',
    //12.s3F下一个日历弹出并选择后点取日期后定位到新的控件

    //sFld2,弹出日历默认日期
    //sCallback

    // sNextVDE 下一次焦点的有效时间.
    // sFakeToday 新添参数，用来和第一个calendar的当前日期比较显示

    var fld1, fld2;
    var cf = document.getElementById("CalFrame");
    var wcf = window.frames.CalFrame;
    var oImg = document.getElementById(sImg);
    if (!oImg) { alert("控制对象不存在！"); return; }
    if (!sFld1) { alert("输入控件未指定！"); return; }
    fld1 = document.getElementById(sFld1);
    if (!fld1) { alert("输入控件不存在！"); return; }
    if (fld1.tagName != "INPUT" || fld1.type != "text") { alert("输入控件类型错误！"); return; }
    if (sFld2) {
        fld2 = document.getElementById(sFld2);
        if (!fld2) { alert("参考控件不存在！"); return; }
        if (fld2.tagName != "INPUT" || (fld2.type != "text" && fld2.type != "hidden")) { alert("参考控件类型错误！"); return; }
    }
    if (!wcf.bCalLoaded) { alert("日历未成功装载！请刷新页面！"); return; }
    wcf.n_position = sNextP;
    wcf.n_textdate = sNextD;
    wcf.startdate = sStartD;
    wcf.enddate = sEndD;
    wcf.vailidday = sVD;
    wcf.oddeven = sOE;
    wcf.vailiddate = sVDE;
    wcf.nextvailiddate = sNextVDE;
    wcf.objecttype = sOT;
    wcf.thirdfocus = s3F;
    if (cf.style.display == "block") { cf.style.display = "none"; return; }

    //==============新版本更新: 关于日历显示位置的更改 ziqiu.zhang 开始	=================
    var eT = 0, eL = 0, p = oImg;

    var sT = (document.body.scrollTop > document.documentElement.scrollTop) ? document.body.scrollTop : document.documentElement.scrollTop;
    //alert(sT);
    var sL = (document.body.scrollLeft > document.documentElement.scrollLeft) ? document.body.scrollLeft : document.documentElement.scrollLeft;
    //alert(sL)

    var h1 = document.body.clientHeight;
    //alert("h1:" + h1);
    var h2 = document.documentElement.clientHeight;
    //alert("h2:" + h2);
    var isXhtml = (h2 <= h1 && h2 != 0) ? true : false;
    //alert(isXhtml);

    //alert("document.documentElement.clientHeight:" + document.documentElement.clientHeight );
    //alert("document.body.clientHeight:" + document.body.clientHeight );
    var myClient = getClient();
    var myScroll = getScroll();
    //alert("myClient.clientWidth:" + myClient.clientWidth);
    //alert("myScroll.sTop:" + myScroll.sTop);
    //alert("myScroll.sLeft:" + myScroll.sLeft);

    var eH = oImg.height, eW = oImg.width;
    while (p && p.tagName.toLowerCase() != "body") { eT += p.offsetTop; eL += p.offsetLeft; p = p.offsetParent; }
    //alert("myClient.clientHeight:" + myClient.clientHeight);
    //alert("myScroll.sTop:" + myScroll.sTop);
    //alert("eT:" + eT);
    //alert("eL:" + eL);
    //alert("eT-myScroll.sTop :" + (eT-myScroll.sTop) );

    //调用日历的控件的高度获取有问题.下面的注释掉.
    /*
    eH=oImg.height;
    alert("eH:" + eH);
    alert(oImg.height);
    alert( "oImg.height :" + oImg.height); //注:oImg.height属性在Firefox中不支持
    */

    //alert("eH:" + eH);
    //alert("eT - myScroll.sTop - eH :" +　( eT - myScroll.sTop - eH ) );

    var bottomSpace = myClient.clientHeight - eT - myScroll.sTop;
    //alert("bottomSpace:" + bottomSpace);
    //alert("myClient.clientHeight-(eT-sT)-eH:" + (parseInt(myClient.clientHeight-(eT-sT)-eH)).toString() );
    //alert("cf.height:" + cf.height);
    eH = 5;
    if (sOT == "text") {
        //cf.style.top= ( (bottomSpace>=cf.height)?eT+eH+20:eT-cf.height ).toString() + "px";
        cf.style.top = (eT + eH + 20).toString() + "px";
    }
    else {
        //cf.style.top= ( (bottomSpace>=cf.height)?eT+eH+20:eT-cf.height ).toString() + "px";	
        //cf.style.top=(bottomSpace>=cf.height)?eT:eT-cf.height;	
        cf.style.top = (eT + eH + 20).toString() + "px";
    }
    // 如果最后一个参数存在，重定位高度
    if (sFakeToday && sFakeToday.length > 0) {
        cf.style.top = "";
        var y;
        //        if (parseInt(eT + eH, 10) <= document.documentElement.clientHeight) {
        //            y = parseInt(eT + eH, 10) % (document.documentElement.clientHeight);
        //        }
        //        else
        y = document.documentElement.clientHeight;
        //        y = window.event.clientY;
        var docuTop = document.body.scrollTop ? document.body.scrollTop : document.documentElement.scrollTop;
        if (y >= document.documentElement.clientHeight - 280) {
            cf.style.top = y + docuTop - 280;
        }
        else
            cf.style.top = y + docuTop;
    }
    //==============新版本更新: 关于日历显示位置的更改 ziqiu.zhang 结束	=================


    cf.style.left = ((isXhtml ? document.documentElement.clientWidth : document.body.clientWidth - (eL - sL) >= cf.width) ? eL : eL + eW - cf.width).toString() + "px";
    if (parseInt(cf.style.pixelLeft) + parseInt(cf.width) > document.body.clientWidth)
        cf.style.left = document.body.clientWidth - cf.width;
    cf.style.display = "block";

    wcf.openbound = bOpenBound;
    wcf.fld1 = fld1;
    wcf.fld2 = fld2;
    wcf.callback = sCallback;
    wcf.initCalendar();
}
function hideCalendar() {
    var cf = document.getElementById("CalFrame");
    cf.style.display = "none";
}

//ziqiu.zhang 2007.11.5

//得到鼠标滚过的距离 scrollTop 与 scrollLeft 
//用法与测试:
/*
var myClient = getClient();
alert("myClient.clientHeight:" + myClient.clientHeight);
alert("myClient.clientWidth:" + myClient.clientWidth);
*/
function getScroll() {
    var sTop = 0, sLeft = 0, sWidth = 0, sHeight = 0;

    sTop = (document.body.scrollTop > document.documentElement.scrollTop) ? document.body.scrollTop : document.documentElement.scrollTop;
    if (isNaN(sTop) || sTop < 0) { sTop = 0; }

    sLeft = (document.body.scrollLeft > document.documentElement.scrollLeft) ? document.body.scrollLeft : document.documentElement.scrollLeft;
    if (isNaN(sLeft) || sLeft < 0) { sLeft = 0; }

    return { sTop: sTop, sLeft: sLeft, sWidth: sWidth, sHeight: sHeight };
}

//得到浏览器当前显示区域的大小 clientHeight 与 clientWidth
/*	用法与测试:
var myScroll = getScroll();	
alert("myScroll.sTop:" + myScroll.sTop);
alert("myScroll.sLeft:" + myScroll.sLeft);
*/
function getClient() {
    var h1 = document.body.clientHeight;
    var h2 = document.documentElement.clientHeight;
    var isXhtml = (h2 <= h1 && h2 != 0) ? true : false;

    this.clientHeight = isXhtml ? document.documentElement.clientHeight : document.body.clientHeight;
    this.clientWidth = isXhtml ? document.documentElement.clientWidth : document.body.clientWidth;

    return { clientHeight: this.clientHeight, clientWidth: this.clientWidth };
}