JS弹出日期控件.

JS弹出控件在做WEB是经常需要用到的,但是往往要想做的好一点的都比较难.以下是一个日期控件共大家参考,希望对大家有所帮助:

drop1.gif：drop2.gif： left1.gif： left2.gif： right1.gif： right2.gif：

// JScript File
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 = 1    // 0 - don't show; 1 - show
var showToday = 1        // 0 - don't show; 1 - show
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    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+"calendar_close.gif' WIDTH='15' HEIGHT='13' BORDER='0' ALT='Close the Calendar'></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("January","February","March","April","May","June","July","August","September","October","November","December")
if (startAt==0)
...{
dayName = new Array    ("Sun","Mon","Tue","Wed","Thu","Fri","Sat")
}
else
...{
dayName = new Array    ("Mon","Tue","Wed","Thu","Fri","Sat","Sun")
}
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)
...{
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-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 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,h,f,s)
...{
sTmp = dateFormat
sTmp = sTmp.replace    ("dd",padZero(d))
sTmp = sTmp.replace    ("d",d)
sTmp = sTmp.replace    ("mmm",monthName[m])
sTmp = sTmp.replace    ("mm",padZero(m+1))
sTmp = sTmp.replace    ("m",m+1)
sTmp = sTmp.replace ("yyyy",y)
return sTmp}

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) ...{
// 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>"
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:" "+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>"
}

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 ++
}
}
}
}
}

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;
}

把以上代放在一个JS文件里,在需要用到的页面里引用JS文件即可:
 调用方式如下:
<input type="text" ID="TextDatetime" onclick="popUpCalendar(this, this, 'yyyy-mm-dd')" Width="220px" ReadOnly>