一个不错日期控件

calendar.js
var dateFormat = 'yyyy-mm-dd';

if(typeof vLangue == 'undefined')
    vLangue = 1
if(typeof vWeekManagement == 'undefined')
    vWeekManagement = 1
    


var    fixedX = -1                    // x position (-1 if to appear below control)
var    fixedY = -1                    // y position (-1 if to appear below control)
var startAt = parseFloat(vWeekManagement)   // 0 - sunday ; 1 - monday
var showWeekNumber = 1            // 0 - don't show; 1 - show
var showToday = 1                // 0 - don't show; 1 - show
var imgDir = "../Images/"                    // directory for images  e.g. var imgDir="/Images/"

var gotoString = "Go To Current Month"
var todayString = "Today is"
var weekString = "Wk"
var scrollLeftMessage = "Click to scroll to previous month. Hold mouse button to scroll automatically."
var scrollRightMessage = "Click to scroll to next month. Hold mouse button to scroll automatically."
var selectMonthMessage = "Click to select a month."
var selectYearMessage = "Click to select a year."
var selectDateMessage = "Select [date] as date." // do not replace [date], it will be replaced by date.
var altCloseCalendar = "Close the Calendar"
var    monthName =    new    Array("January","February","March","April","May","June","July","August","September","October","November","December")

dayName = new Array    ("Sun","Mon","Tue","Wed","Thu","Fri","Sat")
arrTemp = dayName.slice(startAt,7)
dayName = arrTemp.concat(dayName.slice(0,startAt))
                
if (vLangue==0) //FRENCH
{
    gotoString = "Aller au mois en cours"
    todayString = "Aujourd'hui : "
    weekString = "Sem"
    scrollLeftMessage = "Cliquer pour le mois prcdent. Tenir enfonc?pour droulement automatique."
    scrollRightMessage = "Cliquer pour le mois suivant. Tenir enfonc?pour droulement automatique."
    selectMonthMessage = "Cliquer pour choisir un mois."
    selectYearMessage = "Clicquer pour choisir une anne."
    selectDateMessage = "Choisir [date] comme date." // do not replace [date], it will be replaced by date.
    altCloseCalendar = "Fermer le calendrier"
    monthName =    new    Array("Janvier","Fvrier","Mars","Avril","Mai","Juin","Juillet","Aot","Septembre","Octobre","Novembre","Dcembre")

    dayName = new Array    ("Dim","Lun","Mar","Mer","Jeu","Ven","Sam")
    fullDayName = new Array    ("dimanche","lundi","mardi","mercredi","jeudi","vendredi","samedi")
    
    arrTemp = dayName.slice(startAt,7)
    dayName = arrTemp.concat(dayName.slice(0,startAt))
    
    arrTemp = fullDayName.slice(startAt,7)
    fullDayName = arrTemp.concat(fullDayName.slice(0,startAt))
}
            
var    crossobj, crossMonthObj, crossYearObj, monthSelected, yearSelected, dateSelected, omonthSelected, oyearSelected, odateSelected, monthConstructed, yearConstructed, intervalID1, intervalID2, timeoutID1, timeoutID2, ctlToPlaceValue, ctlNow, dateFormat, nStartingYear

var    bPageLoaded=false
var    ie=document.all
var    dom=document.getElementById

var    ns4=document.layers
var    today =    new    Date()
var    dateNow     = today.getDate()
var    monthNow = today.getMonth()
var    yearNow     = today.getYear()
var    imgsrc = new Array("drop1.gif","drop2.gif","left1.gif","left2.gif","right1.gif","right2.gif")
var    img    = new Array()

var bShow = false;

/**//* hides <select> and <applet> objects (for IE only) */
function hideElement( elmID, overDiv )
{
    if( ie )
    {
        for( i = 0; i < document.all.tags( elmID ).length; i++ )
        {
            obj = document.all.tags( elmID )[i];
            if( !obj || !obj.offsetParent )
            {
                continue;
            }
            
            // Find the element's offsetTop and offsetLeft relative to the BODY tag.
            objLeft   = obj.offsetLeft;
            objTop    = obj.offsetTop;
            objParent = obj.offsetParent;
                
            while( objParent.tagName.toUpperCase() != "BODY" )
            {
                objLeft  += objParent.offsetLeft;
                objTop   += objParent.offsetTop;
                objParent = objParent.offsetParent;
            }
            
            objHeight = obj.offsetHeight;
            objWidth = obj.offsetWidth;
            
            if(( overDiv.offsetLeft + overDiv.offsetWidth ) <= objLeft );
            else if(( overDiv.offsetTop + overDiv.offsetHeight ) <= objTop );
            else if( overDiv.offsetTop >= ( objTop + objHeight ));
            else if( overDiv.offsetLeft >= ( objLeft + objWidth ));
            else
            {
                obj.style.visibility = "hidden";
            }
        }
    }
}
                
/**//*
* unhides <select> and <applet> objects (for IE only)
*/
function showElement( elmID )
{
    if( ie )
    {
        for( i = 0; i < document.all.tags( elmID ).length; i++ )
        {
        obj = document.all.tags( elmID )[i];
            
        if( !obj || !obj.offsetParent )
        {
            continue;
        }
        
        obj.style.visibility = "";
        }
    }
}

function HolidayRec (d, m, y, desc)
{
    this.d = d
    this.m = m
    this.y = y
    this.desc = desc
}

var HolidaysCounter = 0
var Holidays = new Array()

function addHoliday (d, m, y, desc)
{
    Holidays[HolidaysCounter++] = new HolidayRec ( d, m, y, desc )
}

if (dom)
{
    for    (i=0;i<imgsrc.length;i++)
    {
        img[i] = new Image
        img[i].src = imgDir + imgsrc[i]
    }
    document.write ("<div onclick='bShow=true' id='calendar'    style='z-index:+999;position:absolute;visibility:hidden;'><table    width="+((showWeekNumber==1)?250:220)+" style='font-family:arial;font-size:11px;border-width:1;border-style:solid;border-color:#a0a0a0;font-family:arial; font-size:11px}' bgcolor='#ffffff'><tr bgcolor='#0000aa'><td><table width='"+((showWeekNumber==1)?248:218)+"'><tr><td style='padding:2px;font-family:arial; font-size:11px;'><font color='#ffffff'><B><span id='caption'></span></B></font></td><td align=right><a href='javascript:hideCalendar()'><IMG SRC='"+imgDir+"close.gif' name=close WIDTH='15' HEIGHT='13' BORDER='0' ALT='" + altCloseCalendar + "'></a></td></tr></table></td></tr><tr><td style='padding:5px' bgcolor=#ffffff><span id='content'></span></td></tr>")
        
    if (showToday==1)
    {
        document.write ("<tr bgcolor=#f0f0f0><td style='padding:5px' align=center><span id='lblToday'></span></td></tr>")
    }
        
    document.write ("</table></div><div id='selectMonth' style='z-index:+999;position:absolute;visibility:hidden;'></div><div id='selectYear' style='z-index:+999;position:absolute;visibility:hidden;'></div>");
}

var    styleAnchor="text-decoration:none;color:black;"
var    styleLightBorder="border-style:solid;border-width:1px;border-color:#a0a0a0;"

function swapImage(srcImg, destImg)
{
    if (ie)    { document.getElementById(srcImg).setAttribute("src",imgDir + destImg) }
}

function init()    
{
    if (!ns4)
    {
        if (!ie) { yearNow += 1900    }

        crossobj=(dom)?document.getElementById("calendar").style : ie? document.all.calendar : document.calendar
        hideCalendar()

        crossMonthObj=(dom)?document.getElementById("selectMonth").style : ie? document.all.selectMonth    : document.selectMonth

        crossYearObj=(dom)?document.getElementById("selectYear").style : ie? document.all.selectYear : document.selectYear

        monthConstructed=false;
        yearConstructed=false;

        if (showToday==1)
        {
            if (vLangue)
                document.getElementById("lblToday").innerHTML =    todayString + " <a onmousemove='window.status=\""+gotoString+"\"' onmouseout='window.status=\"\"' title='"+gotoString+"' style='"+styleAnchor+"' href='javascript:monthSelected=monthNow;yearSelected=yearNow;constructCalendar();'>"+dayName[firstdayofweek(today.getDay())]+", " + dateNow + " " + monthName[monthNow].substring(0,3)    + "    " +    yearNow    + "</a>"
            else
                document.getElementById("lblToday").innerHTML =    todayString + " <a onmousemove='window.status=\""+gotoString+"\"' onmouseout='window.status=\"\"' title='"+gotoString+"' style='"+styleAnchor+"' href='javascript:monthSelected=monthNow;yearSelected=yearNow;constructCalendar();'>"+fullDayName[firstdayofweek(today.getDay())]+" le " + ((dateNow==1)?"1^er":dateNow) + " " + monthName[monthNow].toLowerCase()    + "    " +    yearNow    + "</a>"
        }

        sHTML1="<span id='spanLeft'    style='border-style:solid;border-width:1;border-color:#3366FF;cursor:pointer' onmouseover='swapImage(\"changeLeft\",\"left2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollLeftMessage+"\"' onclick='javascript:decMonth()' onmouseout='clearInterval(intervalID1);swapImage(\"changeLeft\",\"left1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartDecMonth()\",500)'    onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'>&nbsp<IMG id='changeLeft' SRC='"+imgDir+"left1.gif' width=10 height=11 BORDER=0>&nbsp</span>&nbsp;"
        sHTML1+="<span id='spanRight' style='border-style:solid;border-width:1;border-color:#3366FF;cursor:pointer'    onmouseover='swapImage(\"changeRight\",\"right2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollRightMessage+"\"' onmouseout='clearInterval(intervalID1);swapImage(\"changeRight\",\"right1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"' onclick='incMonth()' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartIncMonth()\",500)'    onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'>&nbsp<IMG id='changeRight' SRC='"+imgDir+"right1.gif'    width=10 height=11 BORDER=0>&nbsp</span>&nbsp"
        sHTML1+="<span id='spanMonth' style='border-style:solid;border-width:1;border-color:#3366FF;cursor:pointer'    onmouseover='swapImage(\"changeMonth\",\"drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectMonthMessage+"\"' onmouseout='swapImage(\"changeMonth\",\"drop1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"' onclick='popUpMonth()'></span>&nbsp;"
        sHTML1+="<span id='spanYear' style='border-style:solid;border-width:1;border-color:#3366FF;cursor:pointer' onmouseover='swapImage(\"changeYear\",\"drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectYearMessage+"\"'    onmouseout='swapImage(\"changeYear\",\"drop1.gif\");this.style.borderColor=\"#3366FF\";window.status=\"\"'    onclick='popUpYear()'></span>&nbsp;"
        
        document.getElementById("caption").innerHTML  =    sHTML1

        bPageLoaded=true
    }
}
function firstdayofweek(day)
{
    day -= startAt
    if (day < 0){day = 7 + day}
    return day
}

            function hideCalendar()    
{
    crossobj.visibility="hidden"
    if (crossMonthObj != null){crossMonthObj.visibility="hidden"}
    if (crossYearObj !=    null){crossYearObj.visibility="hidden"}

    showElement( 'SELECT' );
    showElement( 'APPLET' );
}

function padZero(num) {
    return (num    < 10)? '0' + num : num ;
}

function constructDate(d,m,y)
{
    sTmp = dateFormat
    sTmp = sTmp.replace    ("dd","<e>")
    sTmp = sTmp.replace    ("d","<d>")
    sTmp = sTmp.replace    ("<e>",padZero(d))
    sTmp = sTmp.replace    ("<d>",d)
    sTmp = sTmp.replace    ("mmm","<o>")
    sTmp = sTmp.replace    ("mm","<n>")
    sTmp = sTmp.replace    ("m","<m>")
    sTmp = sTmp.replace    ("<m>",m+1)
    sTmp = sTmp.replace    ("<n>",padZero(m+1))
    sTmp = sTmp.replace    ("<o>",monthName[m])
    return sTmp.replace ("yyyy",y)
}

function closeCalendar() {
    var    sTmp

    hideCalendar();
    ctlToPlaceValue.value =    constructDate(dateSelected,monthSelected,yearSelected)
}

/**//*** Month Pulldown    ***/

function StartDecMonth()
{
    intervalID1=setInterval("decMonth()",80)
}

function StartIncMonth()
{
    intervalID1=setInterval("incMonth()",80)
}

function incMonth () {
    monthSelected++
    if (monthSelected>11) {
        monthSelected=0
        yearSelected++
    }
    constructCalendar()
}

function decMonth () {
    monthSelected--
    if (monthSelected<0) {
        monthSelected=11
        yearSelected--
    }
    constructCalendar()
}

function constructMonth() {
    popDownYear()
    if (!monthConstructed) {
        sHTML =    ""
        for    (i=0; i<12;    i++) {
            sName =    monthName[i];
            if (i==monthSelected){
                sName =    "<B>" +    sName +    "</B>"
            }
            sHTML += "<tr><td id='m" + i + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='monthConstructed=false;monthSelected=" + i + ";constructCalendar();popDownMonth();event.cancelBubble=true'>&nbsp;" + sName + "&nbsp;</td></tr>"
        }

        document.getElementById("selectMonth").innerHTML = "<table width=70    style='font-family:arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;' bgcolor='#FFFFDD' cellspacing=0 onmouseover='clearTimeout(timeoutID1)'    onmouseout='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"popDownMonth()\",100);event.cancelBubble=true'>" +    sHTML +    "</table>"

        monthConstructed=true
    }
}

function popUpMonth() {
    constructMonth()
    crossMonthObj.visibility = (dom||ie)? "visible"    : "show"
    crossMonthObj.left = parseInt(crossobj.left) + 50
    crossMonthObj.top =    parseInt(crossobj.top) + 26

    hideElement( 'SELECT', document.getElementById("selectMonth") );
    hideElement( 'APPLET', document.getElementById("selectMonth") );            
}

function popDownMonth()    {
    crossMonthObj.visibility= "hidden"
}

/**//*** Year Pulldown ***/

function incYear() {
    for    (i=0; i<7; i++){
        newYear    = (i+nStartingYear)+1
        if (newYear==yearSelected)
        { txtYear =    "&nbsp;<B>"    + newYear +    "</B>&nbsp;" }
        else
        { txtYear =    "&nbsp;" + newYear + "&nbsp;" }
        document.getElementById("y"+i).innerHTML = txtYear
    }
    nStartingYear ++;
    bShow=true
}

function decYear() {
    for    (i=0; i<7; i++){
        newYear    = (i+nStartingYear)-1
        if (newYear==yearSelected)
        { txtYear =    "&nbsp;<B>"    + newYear +    "</B>&nbsp;" }
        else
        { txtYear =    "&nbsp;" + newYear + "&nbsp;" }
        document.getElementById("y"+i).innerHTML = txtYear
    }
    nStartingYear --;
    bShow=true
}

function selectYear(nYear) {
    yearSelected=parseInt(nYear+nStartingYear);
    yearConstructed=false;
    constructCalendar();
    popDownYear();
}

function constructYear() {
    popDownMonth()
    sHTML =    ""
    if (!yearConstructed) {

        sHTML =    "<tr><td align='center'    onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='clearInterval(intervalID1);this.style.backgroundColor=\"\"' style='cursor:pointer'    onmousedown='clearInterval(intervalID1);intervalID1=setInterval(\"decYear()\",30)' onmouseup='clearInterval(intervalID1)'>-</td></tr>"

        j =    0
        nStartingYear =    yearSelected-3
        for    (i=(yearSelected-3); i<=(yearSelected+3); i++) {
            sName =    i;
            if (i==yearSelected){
                sName =    "<B>" +    sName +    "</B>"
            }

            sHTML += "<tr><td id='y" + j + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='selectYear("+j+");event.cancelBubble=true'>&nbsp;" + sName + "&nbsp;</td></tr>"
            j ++;
        }

        sHTML += "<tr><td align='center' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='clearInterval(intervalID2);this.style.backgroundColor=\"\"' style='cursor:pointer' onmousedown='clearInterval(intervalID2);intervalID2=setInterval(\"incYear()\",30)'    onmouseup='clearInterval(intervalID2)'>+</td></tr>"

        document.getElementById("selectYear").innerHTML    = "<table width=44 style='font-family:arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;'    bgcolor='#FFFFDD' onmouseover='clearTimeout(timeoutID2)' onmouseout='clearTimeout(timeoutID2);timeoutID2=setTimeout(\"popDownYear()\",100)' cellspacing=0>"    + sHTML    + "</table>"

        yearConstructed    = true
    }
}

function popDownYear() {
    clearInterval(intervalID1)
    clearTimeout(timeoutID1)
    clearInterval(intervalID2)
    clearTimeout(timeoutID2)
    crossYearObj.visibility= "hidden"
}

function popUpYear() {
    var    leftOffset

    constructYear()
    crossYearObj.visibility    = (dom||ie)? "visible" : "show"
    leftOffset = parseInt(crossobj.left) + document.getElementById("spanYear").offsetLeft
    if (ie)
    {
        leftOffset += 6
    }
    crossYearObj.left =    leftOffset
    crossYearObj.top = parseInt(crossobj.top) +    26
}

/**//*** calendar ***/
function WeekNbr(n) 
{
    year = n.getFullYear();
    month = n.getMonth() + 1;
    
    day = n.getDate() + 1-startAt;
    
    a = Math.floor((14-month) / 12);
    y = year + 4800 - a;
    m = month + 12 * a - 3;
    b = Math.floor(y/4) - Math.floor(y/100) + Math.floor(y/400);
    J = day + Math.floor((153 * m + 2) / 5) + 365 * y + b - 32045;
    d4 = (((J + 31741 - (J % 7)) % 146097) % 36524) % 1461;
    L = Math.floor(d4 / 1460);
    d1 = ((d4 - L) % 365) + L;
    week = Math.floor(d1/7) + 1;
    
    return week;
}

function constructCalendar () 
{
    var aNumDays = Array (31,0,31,30,31,30,31,31,30,31,30,31)

    var dateMessage
    var    startDate =    new    Date (yearSelected,monthSelected,1)
    var endDate

    if (monthSelected==1)
    {
        endDate    = new Date (yearSelected,monthSelected+1,1);
        endDate    = new Date (endDate    - (24*60*60*1000));
        numDaysInMonth = endDate.getDate()
    }
    else
    {
        numDaysInMonth = aNumDays[monthSelected];
    }

    datePointer    = 0
    
    dayPointer = firstdayofweek(startDate.getDay())
    
    if (dayPointer<0)
    {
        //dayPointer = 6
    }

    sHTML =    "<table     border=0 style='font-family:verdana;font-size:10px;'><tr>"

    if (showWeekNumber==1)
    {
        sHTML += "<td width=27><b>" + weekString + "</b></td><td width=1 rowspan=7 bgcolor='#d0d0d0' style='padding:0px'><img src='"+imgDir+"divider.gif' width=1></td>"
    }

    for    (i=0; i<7; i++)    {
        sHTML += "<td width='27' align='right'><B>"+ dayName[i]+"</B></td>"
    }
    sHTML +="</tr><tr>"
    
    if (showWeekNumber==1)
    {
        sHTML += "<td align=right>" + WeekNbr(startDate) + "&nbsp;</td>"
    }

    for    ( var i=1; i<=dayPointer;i++ )
    {
        sHTML += "<td>&nbsp;</td>"
    }

    for    ( datePointer=1; datePointer<=numDaysInMonth; datePointer++ )
    {
        dayPointer++;
        sHTML += "<td align=right>"
        sStyle=styleAnchor
        if ((datePointer==odateSelected) &&    (monthSelected==omonthSelected)    && (yearSelected==oyearSelected))
        { sStyle+=styleLightBorder }

        sHint = ""
        for (k=0;k<HolidaysCounter;k++)
        {
            if ((parseInt(Holidays[k].d)==datePointer)&&(parseInt(Holidays[k].m)==(monthSelected+1)))
            {
                if ((parseInt(Holidays[k].y)==0)||((parseInt(Holidays[k].y)==yearSelected)&&(parseInt(Holidays[k].y)!=0)))
                {
                    sStyle+="background-color:#FFDDDD;"
                    sHint+=sHint==""?Holidays[k].desc:"\n"+Holidays[k].desc
                }
            }
        }

        var regexp= /\"/g
        sHint=sHint.replace(regexp,"&quot;")

        dateMessage = "onmousemove='window.status=\""+selectDateMessage.replace("[date]",constructDate(datePointer,monthSelected,yearSelected))+"\"' onmouseout='window.status=\"\"' "

        if ((datePointer==dateNow)&&(monthSelected==monthNow)&&(yearSelected==yearNow))
        { sHTML += "<b><a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer+";closeCalendar();'><font color=#ff0000>&nbsp;" + datePointer + "</font>&nbsp;</a></b>"}
        else if    (dayPointer % 7 == (startAt * -1)+1)
        { sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'>&nbsp;<font color=#909090>" + datePointer + "</font>&nbsp;</a>" }
        else
        { sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'>&nbsp;" + datePointer + "&nbsp;</a>" }

        sHTML += ""
        if ((dayPointer+startAt) % 7 == startAt) { 
            sHTML += "</tr><tr>" 
            if ((showWeekNumber==1)&&(datePointer<numDaysInMonth))
            {
                sHTML += "<td align=right>" + (WeekNbr(new Date(yearSelected,monthSelected,datePointer+1))) + "&nbsp;</td>"
            }
        }
    }

    document.getElementById("content").innerHTML   = sHTML
    document.getElementById("spanMonth").innerHTML = "&nbsp;" +    monthName[monthSelected] + "&nbsp;<IMG id='changeMonth' SRC='"+imgDir+"drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>"
    document.getElementById("spanYear").innerHTML =    "&nbsp;" + yearSelected    + "&nbsp;<IMG id='changeYear' SRC='"+imgDir+"drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>"
}

//弹出日历控件窗口(,接收数据控件名,日期格式,top,left)
function popUpCalendar(ctl,    ctl2, format, top, left) 
{
    var    leftpos = left
    var    toppos = top
    
    if (isNaN(left))
        leftpos = -235 //-208
        
    if (isNaN(top))
        toppos = 0

    if (bPageLoaded)
    {
        if ( crossobj.visibility ==    "hidden" ) 
        {
            ctlToPlaceValue    = ctl2
            dateFormat=format;

            formatChar = " "
            aFormat    = dateFormat.split(formatChar)
            if (aFormat.length<3)
            {
                formatChar = "/"
                aFormat    = dateFormat.split(formatChar)
                if (aFormat.length<3)
                {
                    formatChar = "."
                    aFormat    = dateFormat.split(formatChar)
                    if (aFormat.length<3)
                    {
                        formatChar = "-"
                        aFormat    = dateFormat.split(formatChar)
                        if (aFormat.length<3)
                        {
                            // invalid date    format
                            formatChar=""
                        }
                    }
                }
            }
    
            tokensChanged =    0
            if ( formatChar    != "" )
            {
                // use user's date
                aData =    ctl2.value.split(formatChar)

                for    (i=0;i<3;i++)
                {
                    if ((aFormat[i]=="d") || (aFormat[i]=="dd"))
                    {
                        dateSelected = parseInt(aData[i], 10)
                        tokensChanged ++
                    }
                    else if    ((aFormat[i]=="m") || (aFormat[i]=="mm"))
                    {
                        monthSelected =    parseInt(aData[i], 10) - 1
                        tokensChanged ++
                    }
                    else if    (aFormat[i]=="yyyy")
                    {
                        yearSelected = parseInt(aData[i], 10)
                        tokensChanged ++
                    }
                    else if    (aFormat[i]=="mmm")
                    {
                        for    (j=0; j<12;    j++)
                        {
                            if (aData[i]==monthName[j])
                            {
                                monthSelected=j
                                tokensChanged ++
                            }
                        }
                    }
                }
            }

            if ((tokensChanged!=3)||isNaN(dateSelected)||isNaN(monthSelected)||isNaN(yearSelected))
            {
                dateSelected = dateNow
                monthSelected =    monthNow
                yearSelected = yearNow
            }

            odateSelected=dateSelected
            omonthSelected=monthSelected
            oyearSelected=yearSelected

            aTag = ctl
            do {
                aTag = aTag.offsetParent;
                leftpos    += aTag.offsetLeft;
                toppos += aTag.offsetTop;
            } while(aTag.tagName!="BODY");
            
            //var intleft = ctl.offsetLeft;
            //var inttop = ctl.offsetTop;
            //var intheight = ctl.offsetHeight;
            //var intwidth = ctl.offsetWidth;
            
            //如果右边显示不够,则显示在左边
            if((screen.width - (ctl.offsetLeft + leftpos))< 254)
            {
                crossobj.left =    (ctl.offsetLeft + leftpos - 254);
            }
            else
            {
                crossobj.left =    fixedX==-1 ? ctl.offsetLeft    + leftpos :    fixedX //width=254
            }
            crossobj.top = fixedY==-1 ?    ctl.offsetTop +    toppos + ctl.offsetHeight +    2 :    fixedY //height=196
            constructCalendar (1, monthSelected, yearSelected);
            crossobj.visibility=(dom||ie)? "visible" : "show"

            hideElement( 'SELECT', document.getElementById("calendar") );
            hideElement( 'APPLET', document.getElementById("calendar") );            

            bShow = true;
        }
        else
        {
            hideCalendar()
            if (ctlNow!=ctl) {popUpCalendar(ctl, ctl2, format)}
        }
        ctlNow = ctl
    }
}

document.onkeypress = function hidecal1 () 
{ 
    if (event.keyCode==27) 
    {
        hideCalendar()
    }
}

document.onclick = function hidecal2 () 
{         
    if (!bShow)
    {
        hideCalendar()
    }
    bShow = false
}

if(ie)
{
    init()
}
else
{
    window.onload=init
}

//判断是否为合法日期
//日期格式：YYYY-MM-DD
function isdate(strDate)
{
    var strSeparator = "-"; //日期分隔符
    var strDateArray;
    var intYear;
    var intMonth;
    var intDay;
    var boolLeapYear;

    strDateArray = strDate.split(strSeparator);

    if(strDateArray.length!=3) return false;

    intYear = parseInt(strDateArray[0],10);
    intMonth = parseInt(strDateArray[1],10);
    intDay = parseInt(strDateArray[2],10);

    if(isNaN(intYear)||isNaN(intMonth)||isNaN(intDay)) return false;

    if(intMonth>12||intMonth<1) return false;

    if((intMonth==1||intMonth==3||intMonth==5||intMonth==7||intMonth==8||intMonth==10||intMonth==12)&&(intDay>31||intDay<1)) return false;

    if((intMonth==4||intMonth==6||intMonth==9||intMonth==11)&&(intDay>30||intDay<1)) return false;

    if(intMonth==2)
    {
        if(intDay<1) return false;

        boolLeapYear = false;
        if((intYear%100)==0)
        {
            if((intYear%400)==0) boolLeapYear = true;
        }
        else
        {
            if((intYear%4)==0) boolLeapYear = true;
        }

        if(boolLeapYear)
        {
            if(intDay>29) return false;
        }
        else
        {
            if(intDay>28) return false;
        }
    }

    return true;
}

function addDate(type,NumDay,dtDate)
{
    dtDate = dtDate.replace(/\-/g,"/");
    var date = new Date(dtDate)
    var type = parseInt(type); //类型
    var lIntval = parseInt(NumDay); //间隔
    switch(type)
    {
        case 6 ://年
            date.setYear(date.getYear() + lIntval);
            break;
        case 7 ://季度
            date.setMonth(date.getMonth() + (lIntval * 3));
            break;
        case 5 ://月
            date.setMonth(date.getMonth() + lIntval);
            break;
        case 4 ://天
            date.setDate(date.getDate() + lIntval);
            break
        case 3 ://时
            date.setHours(date.getHours() + lIntval);
            break
        case 2 ://分
            date.setMinutes(date.getMinutes() + lIntval);
            break
        case 1 ://秒
            date.setSeconds(date.getSeconds() + lIntval);
            break;
        default:
            break;
    } 
    return formatDate(date,0);
    //return date.getYear() + '-' +  (date.getMonth() + 1) + '-' +date.getDate() + ' '+ date.getHours() + ':' + date.getMinutes() + ':' + date.getSeconds();
} 

function formatDate(sDate) 
{    
    var sScrap = "";
    var dScrap = new Date(sDate);
    if (dScrap == "NaN") return sScrap;
    
    iDay = dScrap.getDate();
    iMon = dScrap.getMonth()+1;
    iYea = dScrap.getFullYear();    
        if (iDay<10) iDay="0"+iDay;
        if (iMon<10) iMon="0"+iMon;
        sScrap = iYea + "-" + iMon + "-" + iDay;
    return sScrap;
}

调用时只要加入onclick="popUpCalendar(this, this, dateFormat,-1,-1)"
相关的图片