/*
 * Bazillyo's Spiffy DHTML Popup Calendar v. 1.0 © 2000 S. Ousta
 *   - freeware with this comment
 *   - for download size, you can strip all spaces & comments except the © notices
 *   - Thanks to Chris for the domlay() function
 *   - this requires calendarcode.js, calendar.css, and calendarTest.htm
 *   - works in IE4.x, IE5.x, NS4.75 possibly 4.x, NS6 (with slight cosmetic issues)
 *   - Netscape does display some controls overtop of the layer so layout is important
 *Atao Chuang modifeid this file. 2002-8-25
 *   - www.enetmaker.net Email:webmaster@enetmaker.net
 */
 
// initialiZe variables... 
var ppcIE=((navigator.appName == "Microsoft Internet Explorer") || ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion)==5)));
var ppcNN6=((navigator.appName == "Netscape") && (parseInt(navigator.appVersion)==5));
//var ppcIE=(navigator.appName == "Microsoft Internet Explorer");
var ppcNN=((navigator.appName == "Netscape")&&(document.layers));
var ppcX = 4;
var ppcY = 4;

var IsCalendarVisible;
var calfrmName;
var maxYearList;
var minYearList;
var todayDate = new Date; 
var curDate = new Date; 
var curImg;
var curDateBox;
var minDate = new Date;
var maxDate = new Date;
var hideDropDowns;
var IsUsingMinMax = false;
var FuncsToRun;
var img_del;
var img_close;
img_del=new Image();
img_del.src="images/decoration/btn_del_small.gif";
img_close=new Image();
img_close.src="images/decoration/btn_close_small.gif";

minYearList=2005;
maxYearList=todayDate.getFullYear()+1;
IsCalendarVisible=false;

img_Date_UP=new Image();
img_Date_UP.src="images/decoration/button_time.gif";

img_Date_OVER=new Image();
img_Date_OVER.src="images/decoration/btn_date_over.gif";

img_Date_DOWN=new Image();
img_Date_DOWN.src="images/decoration/button_time.gif";


function calSwapImg(whatID, NewImg,override) {
    if (document.images) {
     if (!( IsCalendarVisible && override )) {
        document.images[whatID].src = eval(NewImg + ".src");
     }
    }
    window.status=' ';
    return true;
}

function getOffsetLeft (el) {
    var ol = el.offsetLeft;
    while ((el = el.offsetParent) != null)
        ol += el.offsetLeft;
    return ol;
}

function getOffsetTop (el) {
    var ot = el.offsetTop;
    while((el = el.offsetParent) != null)
        ot += el.offsetTop;
    return ot;
}

function showCalendar(frmName, dteBox,btnImg, hideDrops, MnDt, MnMo, MnYr, MxDt, MxMo, MxYr,runFuncs) {
    hideDropDowns = hideDrops;
    FuncsToRun = runFuncs;
    calfrmName = frmName;
    if (IsCalendarVisible) {
        hideCalendar();
    }
    else {
        if (document.images['calbtn1']!=null ) document.images['calbtn1'].src=img_del.src;
        if (document.images['calbtn2']!=null ) document.images['calbtn2'].src=img_close.src;
        
        if (hideDropDowns) {toggleDropDowns('hidden');}

		if ((MnDt!=null) && (MnMo!=null) && (MnYr!=null)) {
            IsUsingMinMax = true;
            minDate.setDate(MnDt);
            minDate.setMonth(MnMo-1);
            minDate.setFullYear(MnYr);
        }
		if ((MxDt!=null) && (MxMo!=null) && (MxYr!=null)) {
            IsUsingMinMax = true;
            maxDate.setDate(MxDt);
            maxDate.setMonth(MxMo-1);
            maxDate.setFullYear(MxYr);
        }

        curImg = btnImg;
        curDateBox = dteBox;

		ppcX = 0;
		ppcY = 0;

        domlay('calendar',1,ppcX,ppcY,Calendar(todayDate.getMonth(),todayDate.getFullYear()));       

        IsCalendarVisible = true;
    }
}

function toggleDropDowns(showHow){
    var i; var j;
    for (i=0;i<document.forms.length;i++) {
        for (j=0;j<document.forms[i].elements.length;j++) {
            if (document.forms[i].elements[j].tagName == "SELECT") {
                if (document.forms[i].name != "Cal")
                    document.forms[i].elements[j].style.visibility=showHow;
            }
        }
    }
}

function hideCalendar(){
    domlay('calendar',0,ppcX,ppcY);
    calSwapImg(curImg, 'img_Date_UP');    
    IsCalendarVisible = false;
    if (hideDropDowns) {toggleDropDowns('visible');}
}

function calClick() {
        window.focus();
}

function domlay(id,trigger,lax,lay,content) {
    /*
     * Cross browser Layer visibility / Placement Routine
     * Done by Chris Heilmann (mail@ichwill.net)
     * Feel free to use with these lines included!
     * Created with help from Scott Andrews.
     * The marked part of the content change routine is taken
     * from a script by Reyn posted in the DHTML
     * Forum at Website Attraction and changed to work with
     * any layername. Cheers to that!
     * Welcome DOM-1, about time you got included... :)
     */
    // Layer visible
    if (trigger=="1"){
        if (document.layers) document.layers[''+id+''].visibility = "show"
        else if (document.all) document.all[''+id+''].style.visibility = "visible"
        else if (document.getElementById) document.getElementById(''+id+'').style.visibility = "visible"                
        }
    // Layer hidden
    else if (trigger=="0"){
        if (document.layers) document.layers[''+id+''].visibility = "hide"
        else if (document.all) document.all[''+id+''].style.visibility = "hidden"
        else if (document.getElementById) document.getElementById(''+id+'').style.visibility = "hidden"             
        }
    // Set horizontal position  
    if (lax){
        if (document.layers){document.layers[''+id+''].left = lax}
        else if (document.all){document.all[''+id+''].style.left=lax}
        else if (document.getElementById){document.getElementById(''+id+'').style.left=lax+"px"}
        }
    // Set vertical position
    if (lay){
        if (document.layers){document.layers[''+id+''].top = lay}
        else if (document.all){document.all[''+id+''].style.top=lay}
        else if (document.getElementById){document.getElementById(''+id+'').style.top=lay+"px"}
        }
    // change content

    if (content){
    if (document.layers){
        sprite=document.layers[''+id+''].document;
        // add father layers if needed! document.layers[''+father+'']...
        sprite.open();
        sprite.write(content);
        sprite.close();
        }
    else if (document.all) document.all[''+id+''].innerHTML = content;  
    else if (document.getElementById){
        //Thanx Reyn!
        rng = document.createRange();
        el = document.getElementById(''+id+'');
        rng.setStartBefore(el);
        htmlFrag = rng.createContextualFragment(content)
        while(el.hasChildNodes()) el.removeChild(el.lastChild);
        el.appendChild(htmlFrag);
        // end of Reyn ;)
        }
    }
}

function Calendar(whatMonth,whatYear) {
    var output = '';
    var datecolwidth;
    var startMonth;
    var startYear;
    startMonth=whatMonth;
    startYear=whatYear;

    curDate.setMonth(whatMonth);
    curDate.setFullYear(whatYear);
    curDate.setDate(todayDate.getDate());

	output += '<form name="Cal" style="margin:0px; padding:0px;"><div id="month_selector"><table border="0" cellspacing="0" cellpadding="0" width="145"><tr>';
    output += '<td align="center" height="20" width="65"  valign="bottom"><select name="cboMonth" onChange="changeMonth();" style="font-size: 9px; font-family:\'verdana\'; border: #e1e1e1 1px solid;">';
    for (month=0; month<12; month++) {
        if (month == whatMonth) output += '<OPTION VALUE="' + month + '" SELECTED>' + names[month] + '<\/OPTION>';
        else                output += '<OPTION VALUE="' + month + '">'          + names[month] + '<\/OPTION>';
    }

	output += '<\/select><\/td><td align="center" height="20" width="23" valign="bottom"><b>ÔÂ<\/b><\/td><td align="center" height="20" width="50" valign="bottom"><select name="cboYear" onChange="changeYear();" style="font-size: 9px; font-family:verdana; border: #e1e1e1 1px solid;">';

    for (year=minYearList; year<maxYearList; year++) {
        if (year == whatYear) output += '<OPTION VALUE="' + year + '" SELECTED>' + year + '<\/OPTION>';
        else              output += '<OPTION VALUE="' + year + '">'          + year + '<\/OPTION>';
    }

	output += '<\/SELECT><\/td><td align="center" height="18"  width="17" valign="bottom"><b>Äê<\/b><\/td><\/tr><\/table><\/div>';
	
    firstDay = new Date(whatYear,whatMonth,1);
    startDay = firstDay.getDay();

    if (((whatYear % 4 == 0) && (whatYear % 100 != 0)) || (whatYear % 400 == 0))
         days[1] = 29;
    else
         days[1] = 28;

    output += '<table border="0" cellspacing="1" cellpadding="0" id="cal_table"><tr valign="bottom">';

    for (i=0; i<7; i++) {
		output += '<td class="top_td">'+ dow[i] +'<\/td>';
    }
    
    output += '<\/tr><tr class="tr_white" valign="bottom">';

    var column = 0;
    var lastMonth = whatMonth - 1;
    var lastYear = whatYear;
    if (lastMonth == -1) { lastMonth = 11; lastYear=lastYear-1;}

    for (i=0; i<startDay; i++, column++) {
        output += getDayLink((days[lastMonth]-startDay+i+1),true,lastMonth,lastYear);
    }

    for (i=1; i<=days[whatMonth]; i++, column++) {
        output += getDayLink(i,false,whatMonth,whatYear);
        if (column == 6) {
            output += '<\/tr><tr class="tr_white" valign="bottom">';
            column = -1;
        }
    }
    
    var nextMonth = whatMonth+1;
    var nextYear = whatYear;
    if (nextMonth==12) { nextMonth=0; nextYear=nextYear+1;}
    
    if (column > 0) {
        for (i=1; column<7; i++, column++) {
            output +=  getDayLink(i,true,nextMonth,nextYear);
        }
        output += '<\/tr><\/table>';
    }
    else {
        output = output.substr(0,output.length-37); // remove the <tr> from the end if there's no last row
        output += '<\/table>';
    }
    
	output += '<\/form>';

    curDate.setDate(1);
    curDate.setMonth(startMonth);
    curDate.setFullYear(startYear);
    return output;
}

function getDayLink(linkDay,isGreyDate,linkMonth,linkYear) {
    var templink;
    if (!(IsUsingMinMax)) {
        if (isGreyDate) {
            templink='<td align="center" class="cal-GreyDate">' + linkDay + '<\/td>';
        }
        else {
            if (isDayToday(linkDay)) {
                templink='<td align="center" class="cal-DayCell">' + '<a class="cal-TodayLink" onmouseover="self.status=\' \';return true" href="javascript:changeDay(' + linkDay + ');">' + linkDay + '<\/a>' +'<\/td>';
            }
            else {
                templink='<td align="center" class="cal-DayCell">' + '<a class="cal-DayLink" onmouseover="self.status=\' \';return true" href="javascript:changeDay(' + linkDay + ');">' + linkDay + '<\/a>' +'<\/td>';
            }
        }
    }
    else {
        if (isDayValid(linkDay,linkMonth,linkYear)) {

            if (isGreyDate){
                templink='<td align="center" class="cal-GreyDate">' + linkDay + '<\/td>';
            }
            else {
                if (isDayToday(linkDay)) {
                    templink='<td align="center" class="cal-DayCell">' + '<a class="cal-TodayLink">' + linkDay + '<\/a>' +'<\/td>';
                }
                else {
                    templink='<td align="center" class="cal-DayCell">' + '<a class="cal-DayLink" onmouseover="self.status=\' \';return true" href="javascript:changeDay(' + linkDay + ');">' + linkDay + '<\/a>' +'<\/td>';
                }
            }
        }
        else {
            templink='<td align="center" class="cal-GreyInvalidDate">'+ linkDay + '<\/td>';
        }
    }
    return templink;
}

function isDayToday(isDay) {
    if ((curDate.getFullYear() == todayDate.getFullYear()) && (curDate.getMonth() == todayDate.getMonth()) && (isDay == todayDate.getDate())) {
        return true;
    }
    else {
        return false;
    }
}

function isDayValid(validDay, validMonth, validYear){
    
    curDate.setDate(validDay);
    curDate.setMonth(validMonth);
    curDate.setFullYear(validYear);
    
    if ((curDate>=minDate) && (curDate<=maxDate)) {
        return true;
    }
    else {
        return false;
    }
}

function padout(number) { return (number < 10) ? '0' + number : number; }

function clearDay() {
    eval('document.' + calfrmName + '.' + curDateBox + '.value = \'\'');
    hideCalendar();
    if (FuncsToRun!=null)
        eval(FuncsToRun); 
}

function changeDay(whatDay) {
    curDate.setDate(whatDay);
	window.open("http://www.ifeng.com/phoenixtv/snapshot/news/"+ curDate.getFullYear() + names[curDate.getMonth()] + '/' +  padout(curDate.getDate()) + ".html");
	if (FuncsToRun!=null)
        eval(FuncsToRun); 
}

function scrollMonth(amount) {
    var monthCheck;
    var yearCheck;
    
    if (ppcIE) {
        monthCheck = document.forms["Cal"].cboMonth.selectedIndex + amount;
    }
    else if (ppcNN) {
        monthCheck = document.calendar.document.forms["Cal"].cboMonth.selectedIndex + amount;    
    }
    if (monthCheck < 0) {
        yearCheck = curDate.getFullYear() - 1;
        if ( yearCheck < minYearList ) {
            yearCheck = minYearList;
            monthCheck = 0;
        }
        else {
            monthCheck = 11;
        }
        curDate.setFullYear(yearCheck);
    }
    else if (monthCheck >11) {
        yearCheck = curDate.getFullYear() + 1;
        if ( yearCheck > maxYearList-1 ) {
            yearCheck = maxYearList-1;
            monthCheck = 11;
        }
        else {
            monthCheck = 0;
        }      
        curDate.setFullYear(yearCheck);
    }
    
    if (ppcIE) {
        curDate.setMonth(document.forms["Cal"].cboMonth.options[monthCheck].value);
    }
    else if (ppcNN) {
        curDate.setMonth(document.calendar.document.forms["Cal"].cboMonth.options[monthCheck].value );
    }
    domlay('calendar',1,ppcX,ppcY,Calendar(curDate.getMonth(),curDate.getFullYear()));
}

function changeMonth() {

    if (ppcIE) {        
        curDate.setMonth(document.forms["Cal"].cboMonth.options[document.forms["Cal"].cboMonth.selectedIndex].value);
        domlay('calendar',1,ppcX,ppcY,Calendar(curDate.getMonth(),curDate.getFullYear()));
    }
    else if (ppcNN) {

        curDate.setMonth(document.calendar.document.forms["Cal"].cboMonth.options[document.calendar.document.forms["Cal"].cboMonth.selectedIndex].value);
        domlay('calendar',1,ppcX,ppcY,Calendar(curDate.getMonth(),curDate.getFullYear()));
    }

}

function changeYear() {
    if (ppcIE) {

        curDate.setFullYear(document.forms["Cal"].cboYear.options[document.forms["Cal"].cboYear.selectedIndex].value);
        domlay('calendar',1,ppcX,ppcY,Calendar(curDate.getMonth(),curDate.getFullYear()));


    }
    else if (ppcNN) {

        curDate.setFullYear(document.calendar.document.forms["Cal"].cboYear.options[document.calendar.document.forms["Cal"].cboYear.selectedIndex].value);
        domlay('calendar',1,ppcX,ppcY,Calendar(curDate.getMonth(),curDate.getFullYear()));
    }

}

function makeArray0() {
    for (i = 0; i<makeArray0.arguments.length; i++)
        this[i] = makeArray0.arguments[i];
}

var names     = new makeArray0('01','02','03','04','05','06','07','08','09','10','11','12');
var days      = new makeArray0(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
//var dow       = new makeArray0('S','M','T','W','T','F','S');
var dow       = new makeArray0('ÈÕ','Ò»','¶þ','Èý','ËÄ','Îå','Áù');