var sMon = new Array(12);

sMon[0] = "Jan"
sMon[1] = "Feb"
sMon[2] = "Mar"
sMon[3] = "Apr"
sMon[4] = "May"
sMon[5] = "Jun"
sMon[6] = "Jul"
sMon[7] = "Aug"
sMon[8] = "Sep"
sMon[9] = "Oct"
sMon[10] = "Nov"
sMon[11] = "Dec"

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

function calendar(t, fmt) {
	var sPath = "calendar1.php";
	strFeatures = "dialogWidth=206px;dialogHeight=228px;center=yes;help=no";
	st = t.value;
	sDate = showModalDialog(sPath,st,strFeatures);
	st = formatDate(sDate, fmt);
	if (st != "") t.value = st;
}

function checkDate(t, fmt) {
	dDateStr = t.value.replace(/-/, '/');
	dDate = new Date(dDateStr);

	if (dDate == "NaN") {t.value = ""; return;}

	iYear = dDate.getFullYear()

	if (iYear > 1899 && iYear < 1950) {

		sYear = "" + iYear + ""
		if (t.value.indexOf(sYear,1) == -1) {
			iYear += 100
			sDate = (dDate.getMonth() + 1) + "/" + dDate.getDate() + "/" + iYear
			dDate = new Date(sDate)
		}
	}
	t.value = formatDate(dDate, fmt);
}

function formatDate(sDate, fmt) {
	var sScrap = "";
	var dScrap = new Date(sDate);
	if (dScrap == "NaN") return sScrap;
	
	iDay = dScrap.getDate();
	iMon = dScrap.getMonth();
	iYea = dScrap.getFullYear();

        if (fmt == 1)
	   sScrap = iYea + "-" + (iMon + 1) + "-" + iDay ;
        else
           sScrap = padZero((iMon + 1)) + "/" + padZero(iDay) + "/" + iYea;

	return sScrap;
}