// how reliable is this test?
	isIE = (document.all ? true : false);
	isDOM = (document.getElementById ? true : false);

	// Initialize arrays.
	var months = new Array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
	var daysInMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
	var displayMonth = new Date().getMonth();
	var displayYear = new Date().getFullYear();
	var displayDivName;
	var displayElement;

		function getDays(month, year) {
			// Test for leap year when February is selected.
			if (1 == month)
				return ((0 == year % 4) && (0 != (year % 100))) || (0 == year % 400) ? 29 : 28;
			else
				return daysInMonth[month];
			}

		function getToday() {
			// Generate today's date.
            this.now = new Date();
            this.year = this.now.getFullYear();
            this.month = this.now.getMonth();
            this.day = this.now.getDate();
         }

         // Start with a calendar for today.
         today = new getToday();

        function newCalendar(eltName,attachedElement) {
	    	if (attachedElement) {
	       		if (displayDivName && displayDivName != eltName) hideElement(displayDivName);
	       		displayElement = attachedElement;
	    	}
	    
	    	displayDivName = eltName;
            today = new getToday();
            var parseYear = parseInt(displayYear + '');
            var newCal = new Date(parseYear,displayMonth,1);
            var day = -1;
            var startDayOfWeek = newCal.getDay();
            if ((today.year == newCal.getFullYear()) && (today.month == newCal.getMonth())) {
               day = today.day;
            }
            var intDaysInMonth = getDays(newCal.getMonth(), newCal.getFullYear());
            var daysGrid = makeDaysGrid(startDayOfWeek,day,intDaysInMonth,newCal,eltName);

			if (isIE) {
				var elt = document.all[eltName];
				elt.innerHTML = daysGrid;
			} else if (isDOM) {
				var elt = document.getElementById(eltName);
				elt.innerHTML = daysGrid;
			} else {
				var elt = document.layers[eltName].document;
				elt.open();
				elt.write(daysGrid);
				elt.close();
			}
		}

	 function incMonth(delta,eltName) {
	   displayMonth += delta;
	   if (displayMonth >= 12) {
	     displayMonth = 0;
	     incYear(1,eltName);
	   } else if (displayMonth <= -1) {
	     displayMonth = 11;
	     incYear(-1,eltName);
	   } else {
	     newCalendar(eltName);
	   }
	 }

	 function incYear(delta,eltName) {
	   displayYear = parseInt(displayYear + '') + delta;
	   newCalendar(eltName);
	 }

	 function makeDaysGrid(startDay,day,intDaysInMonth,newCal,eltName) {
	    var daysGrid;
	    var month = newCal.getMonth();
	    var year = newCal.getFullYear();
	    var isThisYear = (year == new Date().getFullYear());
	    var isThisMonth = (day > -1)
	    daysGrid = '<table border=1 bordercolor="3E4CA0" cellspacing=0 cellpadding=2><tr><td bgcolor=#ffffff nowrap>';
	    daysGrid += '<font face="courier new, courier" size=2>';
	    daysGrid += '<a href="javascript:hideElement(\'' + eltName + '\')"><image src="close.jpg" border="0"></a>';
	    daysGrid += '&nbsp;&nbsp;';
	    daysGrid += '<a href="javascript:incMonth(-1,\'' + eltName + '\')"><image src="left.jpg" border="0"></a>&nbsp;';

	    daysGrid += '<b>';
	    if (isThisMonth) { daysGrid += '<font color=red>' + months[month] + '</font>'; }
	    else { daysGrid += months[month]; }
	    daysGrid += '</b>';

	    daysGrid += '&nbsp;<a href="javascript:incMonth(1,\'' + eltName + '\')"><image src="right.jpg" border="0"></a>';
	    daysGrid += '&nbsp;&nbsp;&nbsp;';
	    daysGrid += '<a href="javascript:incYear(-1,\'' + eltName + '\')"><image src="left.jpg" border="0"></a>&nbsp;';

	    daysGrid += '<b>';
	    if (isThisYear) { daysGrid += '<font color=red>' + year + '</font>'; }
	    else { daysGrid += ''+year; }
	    daysGrid += '</b>';

	    daysGrid += '&nbsp;<a href="javascript:incYear(1,\'' + eltName + '\')"><image src="right.jpg" border="0"></a><br>';
	    daysGrid += '&nbsp;Su Mo Tu We Th Fr Sa&nbsp;<br>&nbsp;';
	    var dayOfMonthOfFirstSunday = (7 - startDay + 1);
	    for (var intWeek = 0; intWeek < 6; intWeek++) {
	       var dayOfMonth;
	       for (var intDay = 0; intDay < 7; intDay++) {
	         dayOfMonth = (intWeek * 7) + intDay + dayOfMonthOfFirstSunday - 7;
		 if (dayOfMonth <= 0) {
	           daysGrid += "&nbsp;&nbsp; ";
		 } else if (dayOfMonth <= intDaysInMonth) {
		   var color = "blue";
		   if (day > 0 && day == dayOfMonth) color="red";
		   daysGrid += '<a href="javascript:setDay(';
		   daysGrid += dayOfMonth + ',\'' + eltName + '\')" '
		   daysGrid += 'style="color:' + color + '">';
		   var dayString = dayOfMonth + "</a> ";
		   if (dayString.length == 6) dayString = '0' + dayString;
		   daysGrid += dayString;
		 }
	       }
	       if (dayOfMonth < intDaysInMonth) daysGrid += "<br>&nbsp;";
	    }
	    return daysGrid + "</td></tr></table>";
	 }

	 function setDay(day,eltName) {
	   // displayElement.value = (displayMonth + 1) + "/" + day + "/" + displayYear;
	   
	   displayElement.value = day + "/" + (displayMonth + 1) + "/" + displayYear;
	   
	   hideElement(eltName);
	 }