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一个兼容IE、Firefox和Opera浏览器的英文日历脚本

摘要: 一个兼容IE、Firefox和Opera浏览器的英文日历脚本

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, 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 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 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 {
img[i] = new Image
img[i].src = imgDir + imgsrc[i]
}
document.write ("
<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;'></td><td align=right></td></tr></table></td></tr><tr><td style='padding:5px' bgcolor=#ffffff></td></tr>")

if (showToday==1)
{
document.write ("<tr bgcolor=#f0f0f0><td style='padding:5px' align=center></td></tr>")
}

document.write ("</table>
");
}

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 ("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 + " "+dayName[(today.getDay()-startAt==-1)?6:(today.getDay()-startAt)]+", " + dateNow + " " + monthName[monthNow].substring(0,3) + " " + yearNow + ""
}

sHTML1="&nbsp&nbsp "
sHTML1+="&nbsp&nbsp&nbsp"
sHTML1+=" "
sHTML1+=" "

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","")
sTmp = sTmp.replace ("d","")
sTmp = sTmp.replace ("",padZero(d))
sTmp = sTmp.replace ("",d)
sTmp = sTmp.replace ("mmmm","
")
sTmp = sTmp.replace ("mmm","")
sTmp = sTmp.replace ("mm","")
sTmp = sTmp.replace ("m","")
sTmp = sTmp.replace ("",m+1)
sTmp = sTmp.replace ("",padZero(m+1))
sTmp = sTmp.replace ("",monthName[m])
sTmp = sTmp.replace ("
",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 = " " + monthName[newMonth] + " ";
else
txtMonth = " " + monthName[newMonth] + " ";
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 = " " + monthName[newMonth] + " ";
else
txtMonth = " " + monthName[newMonth] + " ";
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 = "" + sName + ""
}
sHTML += "<tr><td id='m" + j + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='selectMonth(" + j + ");event.cancelBubble=true'> " + sName + " </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-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<6; i++)
{
newYear = (i+nStartingYear)+1
if (newYear==yearSelected)
{
txtYear = " " + newYear + " "
}
else
{
txtYear = " " + newYear + " "
}
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 = " " + newYear + " "
}
else
{
txtYear = " " + newYear + " "
}
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 = "" + sName + ""
}

sHTML += "<tr><td id='y" + j + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='selectYear("+j+");event.cancelBubble=true'> " + sName + " </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>" + weekString + "</td><td width=1 rowspan=7 bgcolor='#d0d0d0' style='padding:0px'></td>"
}

for (i=0; i<7; i++)
{
sHTML += "<td width='27' align='right'>"+ dayName[i]+"</td>"
}
sHTML +="</tr><tr>"

if (showWeekNumber==1)
{
sHTML += "<td align=right>" + WeekNbr(startDate) + " </td>"
}

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

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

if ((datePointer==dateNow)&&(monthSelected==monthNow)&&(yearSelected==yearNow))
{
sHTML += " " + datePointer + " "
}
else if (dayPointer % 7 == (startAt * -1)+1)
{
sHTML += " " + datePointer + " "
}
else
{
sHTML += " " + datePointer + " "
}

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

document.getElementById("content").innerHTML = sHTML
document.getElementById("spanMonth").innerHTML = " " + monthName[monthSelected] + " "
document.getElementById("spanYear").innerHTML = " " + yearSelected + " "
}

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
}
//
</script>
</head>
<body>
<table><tr><td><input id="Text1" onclick='popUpCalendar(this, this, " mm/dd/yyyy")' readOnly type="text"</td></tr></table>
</body>

　　说明：close.gif、drop1.gif、drop2.gif、left1.gif、left2.gif、right1.gif、right2.gif分别为关闭图片（14*13）、向下的箭头1（11*10）、向下的箭头2（11*10）、向左的箭头1（10*11）、向左的箭头2（10*11）、向右的箭头1（10*11）、向右的箭头2（10*11）
</td> </tr> </table>
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