/////////////////////////////////////////////////////////////////////////////
function onSelectDate(datelistid, datelistvalueid) {
    updateHiddenValue(datelistid, datelistvalueid);
}
/////////////////////////////////////////////////////////////////////////////
function onSelectTime(timelistid, monthlistid, datelistid, datelistvalueid) {
    var timelist = document.getElementById(timelistid);
    var monthlist = document.getElementById(monthlistid);
    var datelist = document.getElementById(datelistid);
    monthlist.selectedIndex = 0;   
    datelist.options.length = 0;
    datelist.options[0] = new Option('--select date--', '');
    datelist.disabled = true;
    updateHiddenValue(datelistid, datelistvalueid);
}
////////////////////////////////////////////////////////////////////////////
function onSelectMonth(timelistid, monthlistid, datelistid, datelistvalueid) {
    var timelist = document.getElementById(timelistid);
    var monthlist = document.getElementById(monthlistid);
    var datelist = document.getElementById(datelistid);
    datelist.options.length = 0;
    datelist.options[0] = new Option('--select date--', '');
    if (monthlist.selectedIndex == 0) {
        datelist.disabled = true;
    }
    else {
        var timelistvalue = timelist.options[timelist.selectedIndex].value.substring(0, 3);
        var dayindex = 0;
        if (timelistvalue == 'Sun') {
            dayindex = 0;
        }
        else if (timelistvalue == 'Mon') {
            dayindex = 1;
        }
        else if (timelistvalue == 'Tue') {
            dayindex = 2;
        }
        else if (timelistvalue == 'Wed') {
            dayindex = 3;
        }
        else if (timelistvalue == 'Thu') {
            dayindex = 4;
        }
        else if (timelistvalue == 'Fri') {
            dayindex = 5;
        }
        else if (timelistvalue == 'Sat') {
            dayindex = 6;
        }

        var monthindex = monthlist.options[monthlist.selectedIndex].value;
        var datearr = eval('dates' + dayindex.toString() + '_' + monthindex.toString());
        datelist.disabled = false;
        var x = 0;
        for (x = 0; x != datearr.length; x++) {
            datelist.options[x + 1] = new Option(datearr[x], datearr[x]);
        }
    }
    updateHiddenValue(datelistid, datelistvalueid);
}
/////////////////////////////////////////////////////////////////////////////
function updateHiddenValue(datelistid, datelistvalueid) {
    var datelist = document.getElementById(datelistid);
    var datelistvalue = document.getElementById(datelistvalueid);
    datelistvalue.value = datelist.options[datelist.selectedIndex].text;
    if (datelistvalue.value == '--select date--') {
        datelistvalue.value = '';
    }
}
/////////////////////////////////////////////////////////////////////////////