/* MarcGrabanski.com */
/* Pop-Up Calendar Built from Scratch by Marc Grabanski */


var popUpCal = {
    selectedMonth: new Date().getMonth(), // 0-11
    selectedYear: new Date().getFullYear(), // 4-digit year
    selectedDay: new Date().getDate(),
    init: function() {
        $('<div id="calendarDiv" class="modalBackground"></div>').appendTo("body");
        var x = $('a.calendarSelectDate');
        var x_hd = $("#hd_choosedate");
        var y = $('#calendarDiv');
        if (x_hd.val() == "") {
            setVal = formatDate(popUpCal.selectedDay, popUpCal.selectedMonth, popUpCal.selectedYear);
            x_hd.val(setVal);
        }
        x.click(function() {
            //alert("aaa");
            var obj = $(this);
            $("ul.e_date a").each(function() {
                $(this).removeClass("now");
            });
            obj.addClass("now");
            popUpCal.input = x_hd;
            y.hide();
            setPos(this, y); // setPos(targetObj,moveObj)
            setDateFromField();
            popUpCal.drawCalendar();
            // $("#county").hide();
        });
    }, // end init function
    drawCalendar: function() {
        html = '';
        html += '<table cellpadding="0" cellspacing="0" id="linksTable"><tr>';
        html += ' <td><a id="prevMonth" href="javascript:void(0);"><img src="/images/diary/ico_calendargopremonth.gif" alt="" /></a></td>';
        html += '<td  class="calendarHeader">' + getMonthName(popUpCal.selectedMonth) + ' ' + popUpCal.selectedYear + '</td>';
        html += ' <td><a id="nextMonth" href="javascript:void(0);"><img src="/images/diary/ico_calendargonextmonth.gif" alt="" /></a></td></tr>';
        //html += ' <tr><td><a id="prevYear"><< 上一年</a></td>';
        // html += ' <td><a id="nextYear">下一年 >></a></td>';
        html += '</tr></table>';
        html += '<table id="calendar" cellpadding="0" cellspacing="0"><tr>';
        //html += '<th colspan="7" class="calendarHeader">'+getMonthName(popUpCal.selectedMonth)+' '+popUpCal.selectedYear+'</th>';
        html += '</tr><tr class="weekDaysTitleRow">';
        var weekDays = new Array('日', '一', '二', '三', '四', '五', '六');
        for (var j = 0; j < weekDays.length - 1; j++) {
            html += '<td width="10%">' + weekDays[j] + '</td>';
        }
        html += '<td width="10%" style="border-right: 1px solid #DDF6C2;">' + weekDays[weekDays.length - 1] + '</td>';
        daysInMonth = getDaysInMonth(popUpCal.selectedYear, popUpCal.selectedMonth);
        startDay = getFirstDayofMonth(popUpCal.selectedYear, popUpCal.selectedMonth);
        numRows = 0;
        printDate = 1;
        if (startDay != 7) { numRows = Math.ceil(((startDay + 1) + (daysInMonth)) / 7); } // calculate the number of rows to generate
        // calculate number of days before calendar starts
        (startDay != 7) ? noPrintDays = startDay + 1 : noPrintDays = 0; // if sunday print right away 
        // function with cruft for figuring out what day to highlight
        selectedDate = popUpCal.input.val().split('/');
        if (selectedDate.length == 3) {
            thisMonth = parseFloat(selectedDate[0]) - 1;
            thisDay = parseFloat(selectedDate[1]);
            thisYear = parseFloat(selectedDate[2]);
        } else {
            thisDay = new Date().getDate();
            thisMonth = new Date().getMonth();
            thisYear = new Date().getFullYear();
        }
        // create calendar rows
        for (var e = 0; e < numRows; e++) {
            html += '<tr class="weekDaysRow">';
            // create calendar days
            for (var f = 0; f < 7; f++) {
                if ((printDate == thisDay)
                        && (popUpCal.selectedYear == thisYear)
                        && (popUpCal.selectedMonth == thisMonth)
                        && (noPrintDays == 0)) {
                    html += '<td id="today" class="weekDaysCell">';
                } else {
                    html += '<td class="weekDaysCell">';
                }
                if (noPrintDays == 0) {
                    if (printDate <= daysInMonth) {
                        html += '<a href="javascript:void(0);">' + printDate + '</a>';
                    }
                    printDate++;
                }
                html += '</td>';
                if (noPrintDays > 0) noPrintDays--;
            }
            html += '</tr>';
        }
        html += '<td conspan="7" class="weekDaysCell"><a id="closeCalender" href="javascript:void(0);">关闭</a></td>';
        html += '</table>';


        // add calendar to element to calendar Div
        var calendarDiv = $('#calendarDiv');
        calendarDiv.empty().append(html).show("medium");
        popUpCal.setupLinks();
        // close button link
        $('#closeCalender').click(function() {
            calendarDiv.hide();
        });
        // setup next and previous links
        $('#prevMonth').click(function() {
            popUpCal.selectedMonth--;
            if (popUpCal.selectedMonth < 0) {
                popUpCal.selectedMonth = 11;
                popUpCal.selectedYear--;
            }
            popUpCal.drawCalendar();
        });
        $('#nextMonth').click(function() {
            popUpCal.selectedMonth++;
            if (popUpCal.selectedMonth > 11) {
                popUpCal.selectedMonth = 0;
                popUpCal.selectedYear++;
            }
            popUpCal.drawCalendar();
        });
        $('#prevYear').click(function() {
            popUpCal.selectedYear--;
            popUpCal.drawCalendar();
        });
        $('#nextYear').click(function() {
            popUpCal.selectedYear++;
            popUpCal.drawCalendar();
        });
    }, // end drawCalendar function
    setupLinks: function() {
        // set up link events on calendar table
        var x = $('#calendar a');
        x.mouseover(function() {
            this.parentNode.className = 'weekDaysCellOver';
        });
        x.mouseout(function() {
            this.parentNode.className = 'weekDaysCell';
        });
        x.click(function() {
            // $("#county").show();
            $('#calendarDiv').hide();
            //日期点击后把当前A的值赋给input
            popUpCal.selectedDay = $(this).html();
            //alert($(this).html());
            if (popUpCal.selectedDay != '关闭') {
                setVal = formatDate(popUpCal.selectedDay, popUpCal.selectedMonth, popUpCal.selectedYear);
                popUpCal.input.val(setVal);
            }
            var val = $("#hd_choosedate").val();
            //alert(val);
            //之前的
//            document.location = "/events/all_events.aspx?timerange=" + val;
            //更改后的
            document.location = "/events/search.aspx?pagesearch=2&isover=2&timerange=" + val;
//            "search.aspx?pagesearch=2&isover=" + 2 + "&timerange=30";
           
        });
    } // end setupLinks function
}
/* Functions Dealing with Dates */
function formatDate(Day, Month, Year) {
    Month++; // adjust javascript month
    if (Month < 10) Month = '0' + Month; // add a zero if less than 10
    if (Day < 10) Day = '0' + Day; // add a zero if less than 10
    var dateString = Year + '-' + Month + '-' + Day;
    return dateString;
}
function setDateFromField() {
    selectedDate = popUpCal.input.val().split('/');
    if (selectedDate.length == 3) {
        popUpCal.selectedMonth = parseFloat(selectedDate[0]) - 1;
        popUpCal.selectedDay = parseFloat(selectedDate[1]);
        popUpCal.selectedYear = parseFloat(selectedDate[2]);
    } else {
        popUpCal.selectedDay = new Date().getDate();
        popUpCal.selectedMonth = new Date().getMonth();
        popUpCal.selectedYear = new Date().getFullYear();
    }
}
function getMonthName(month) {
    var monthNames = new Array('一月', '二月', '三月', '四月', '五月', '六月', '七月', '八月', '九月', '十月', '十一月', '十二月');
    return monthNames[month];
}
function getDayName(day) {
    var dayNames = ""; //new Array('星期一','星期二','星期三','星期四','星期五','星期六','星期日')
    return dayNames[day];
}
function getDaysInMonth(year, month) {
    return 32 - new Date(year, month, 32).getDate();
}
function getFirstDayofMonth(year, month) {
    var day;
    day = new Date(year, month, 0).getDay();
    return day;
}
/* Position Functions */
function setPos(targetObj, moveObj) {
    var coors = findPos(targetObj);
    moveObj.css('position', 'absolute');
    moveObj.css('top', coors[1] + 18 + 'px');
    moveObj.css('left', coors[0] + 'px');
}
function findPos(obj) {
    var curleft = curtop = 0;
    if (obj.offsetParent) {
        curleft = obj.offsetLeft
        curtop = obj.offsetTop
        while (obj = obj.offsetParent) {
            curleft += obj.offsetLeft
            curtop += obj.offsetTop
        }
    }
    return [curleft, curtop];
}