• changedate.js


    引用:http://wanshiruyi1989.blog.163.com/blog/static/2879929620083118272307/

    在用表单收集信息时难免会让浏览者填些日期类型的数据,但由于日期的特殊格式不方便填写,如果能给浏览者提供一个控件使其方便的操作是我们所希望的。这里有个日期选择控件,用鼠标点击几下,一切就轻松搞定,试试吧!

    HTML文件如下:

    <html>
    <head>
    <title>Date</title>
    <style>
      body,div,td{
      font-size:12px;}
    </style>
    <script language="javascript" type="text/javascript" src="changedate.js"></script>
    <script language="javascript" type="text/javascript">
    function config()
    {
     var strdate,stry,strm,strd;
     var dateobj = new Date();
     stry = dateobj.getYear();
     strm = dateobj.getMonth();
     strd = dateobj.getDay();
     strdate = stry + "-" + strm + "-" +strd;
     document.getElementById("date").value = strdate;
    }
    </script>
    </head>
    <body onload="config();">
    <input id="date" size="10" onClick="popUpCalendar(this, this, 'yyyy-mm-dd')" readonly="readonly" />
    </body>
    </html>

    JS文件(changedate.js)如下:

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

     var gotoString = "Go To Current Month"
     var todayString = "Today is"
     var weekString = "Wk"
     var scrollLeftMessage = "选择上个月."
     var scrollRightMessage = "选择下个月."
     var selectMonthMessage = "点这里选择一个月份."
     var selectYearMessage = "点这里选择年."
     var selectDateMessage = "选择日期: [date] " // do not replace [date], it will be replaced by date.

     var crossobj, crossMonthObj, crossYearObj, monthSelected, yearSelected, dateSelected, omonthSelected, oyearSelected, odateSelected, monthConstructed, yearConstructed, intervalID1, intervalID2, timeoutID1, timeoutID2, ctlToPlaceValue, ctlNow, dateFormat, nStartingYear, nStartingMonth

     var bPageLoaded=false
     
     var ie = false;
     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;
     
     if((navigator.userAgent.toLowerCase().indexOf("opera") == -1) && (navigator.userAgent.toLowerCase().indexOf("msie") != -1))
     {
        ie = true;
     }

        /* 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-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' WIDTH='15' HEIGHT='13' BORDER='0' ALT='关闭'></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 monthName = new Array("01","02","03","04","05","06","07","08","09","10","11","12")
     var monthName2 = new Array("01","02","03","04","05","06","07","08","09","10","11","12")
     if (startAt==0)
     {
      dayName = new Array ("日","一","二","三","四","五","六")
     }
     else
     {
      dayName = new Array ("一","二","三","四","五","六","日")
     }
     var styleAnchor="text-decoration:none;color:black;"
     var styleLightBorder="border-style:solid;border-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)
       {
        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[(today.getDay()-startAt==-1)?6:(today.getDay()-startAt)]+", " + dateNow + " " + monthName[monthNow].substring(0,3) + " " + yearNow + "</a>"
       }

       sHTML1="<span id='spanLeft' style='border-style:solid;border-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-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-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-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 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 ("mmmm","<p>")
      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])
      sTmp = sTmp.replace ("<p>",monthName2[m])
      sTmp = sTmp.replace ("yyyy",y)
      return sTmp.replace ("yy",padZero(y%100))
     }

     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 upMonth() {
      if(nStartingMonth > 0)
      {
       nStartingMonth --;
       for (i=0; i<6; i++)
       {
        newMonth = (i + nStartingMonth);
        if (newMonth == monthSelected)
         txtMonth = "&nbsp;<B>" + monthName[newMonth] + "</B>&nbsp;";
        else
         txtMonth = "&nbsp;" + monthName[newMonth] + "&nbsp;";
        document.getElementById("m"+i).innerHTML = txtMonth;
       }
      }
      bShow=true
     }

     function downMonth() {
      if(nStartingMonth < 6)
      {
       nStartingMonth ++;
       for (i=0; i<6; i++)
       {
        newMonth = (i + nStartingMonth);
        if (newMonth == monthSelected)
         txtMonth = "&nbsp;<B>" + monthName[newMonth] + "</B>&nbsp;";
        else
         txtMonth = "&nbsp;" + monthName[newMonth] + "&nbsp;";
        document.getElementById("m"+i).innerHTML = txtMonth;
       }
      }
      bShow=true
     }


     function selectMonth(nMonth) {
      monthSelected=parseInt(nMonth+nStartingMonth);
      monthConstructed=false;
      constructCalendar();
      popDownMonth();
     }
     
     function constructMonth() {
      popDownYear()
      if (!monthConstructed) {

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

       j=0;
       i=(monthSelected-3);
       if(i < 0)
        i=0;
       if(i > 6)
        i=6;
       nStartingMonth = i;
       for (ii=0; ii<6; ii++, i++, j++) {
        sName = monthName[i];
        if (i==monthSelected){
         sName = "<B>" + sName + "</B>"
        }
        sHTML += "<tr><td id='m" + j + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='selectMonth(" + j + ");event.cancelBubble=true'>&nbsp;" + sName + "&nbsp;</td></tr>"
       }

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

       document.getElementById("selectMonth").innerHTML = "<table width=32 style='font-family:arial; font-size:11px; border-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<6; 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<6; 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=45 style='font-family:arial; font-size:11px; border-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) {
          // Algorithm used:
          // From Klaus Tondering's Calendar document (The Authority/Guru)
          // hhtp://www.tondering.dk/claus/calendar.html
          // a = (14-month) / 12
          // y = year + 4800 - a
          // m = month + 12a - 3
          // J = day + (153m + 2) / 5 + 365y + y / 4 - y / 100 + y / 400 - 32045
          // d4 = (J + 31741 - (J mod 7)) mod 146097 mod 36524 mod 1461
          // L = d4 / 1460
          // d1 = ((d4 - L) mod 365) + L
          // WeekNumber = d1 / 7 + 1
     
          year = n.getFullYear();
          month = n.getMonth() + 1;
          if (startAt == 0) {
             day = n.getDate() + 1;
          }
          else {
             day = n.getDate();
          }
     
          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 = startDate.getDay() - startAt
      
      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 class="xyz">"
       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 += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer+";closeCalendar();'>&nbsp;<font color=#ff0000>" + datePointer + "</font>&nbsp;</a>"}
       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>"
     }

     function popUpCalendar(ctl, ctl2, format) {
      var leftpos=0
      var 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 ++
            }
           }
          }
          else if (aFormat[i]=="mmmm")
          {
           for (j=0; j<12; j++)
           {
            if (aData[i]==monthName2[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");

        crossobj.left = fixedX==-1 ? ctl.offsetLeft + leftpos : fixedX
        crossobj.top = fixedY==-1 ? ctl.offsetTop + toppos + ctl.offsetHeight + 2 : fixedY
        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

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  • 原文地址:https://www.cnblogs.com/sode/p/2649406.html
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