function selectRedNum(obj)
{
    if (obj.className == "CommonLotteryRedBallStyle")
    {
        obj.className = "CommonLotteryGrayBallStyle";
    }
    else
    {
        obj.className = "CommonLotteryRedBallStyle";
    }

    ReflashMoney();
}

function GetVoteString()
{
    var strVoteLine = "";
    for (var i = 1; i <= 31; i++)
    {
        var objchooseRed = document.getElementById("chooseRed" + i);

        if (objchooseRed.className == "CommonLotteryRedBallStyle")
        {
            strVoteLine += MakeDoubleNumber(i) + " ";
        }
    }

    strVoteLine = strVoteLine.substring(0, strVoteLine.length - 1);

    return strVoteLine;
}

function GetVoteCount(strVoteLine)
{
    var arr = strVoteLine.split(" ");

    var n = 0;

    if (arr.length >= 7 && strVoteLine != "")
    {
        n = C(arr.length, 7);
    }

    return n;
}

function ValidateVote()
{
    if (GetVoteCount(GetVoteString()) == 0)
    {
        return false;
    }
    else
    {
        return true;
    }
}

function ValidateVoteString(strVoteString)
{
    if (GetVoteCount(strVoteString) == 0)
    {
        return false;
    }
    else
    {
        return true;
    }
}

function ReflashMoney()
{
    var votecount = document.getElementById("SpanVoteCount");
    var totalmoney = document.getElementById("SpanTotalMoney");

    if (ValidateVote())
    {
        var count = GetVoteCount(GetVoteString());

        votecount.innerText = count;
        totalmoney.innerText = count * 2;
    }
    else
    {
        votecount.innerText = 0;
        totalmoney.innerText = 0;
    }
}

function CleanMoney()
{
    var votecount = document.getElementById("SpanVoteCount");
    var totalmoney = document.getElementById("SpanTotalMoney");

    votecount.innerText = 0;
    totalmoney.innerText = 0;
}

function CleanVote()
{
    for (var i = 1; i <= 31; i++)
    {
        var objchooseRed = document.getElementById("chooseRed" + i);
        objchooseRed.className = "CommonLotteryGrayBallStyle";
    }

    CleanMoney();
}



function randomBall()
{
    var a = new Array("01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31");
    var b = "", c;
    for (i = 1; i <= 7; i++)
    {
        c = Math.floor(Math.random() * a.length);
        b = b + a[c] + " ";
        a = a.del(c);
    }
    return b.substring(0, b.length - 1);
}

function randomProjects(i)
{
    for (n = 0; n < i; n++)
    {
        var strVoteLine = randomBall();
        AddList(strVoteLine, 2);
    }
}