<!-- BEGIN Timestamp Picker Script - European Date Format ------------------->
<!------ Script available at JavaScipt Corral, http://www.crays.com/jsc ----->
<!------ And the authors site, http://us.geocities.com/tspicker/ ------------>


<!--
// Title: Timestamp picker
// Description: See the demo at url
// URL: http://www.geocities.com/tspicker/
// Version: 1.0.a (Date selector only)
// Date: 12-12-2001 (mm-dd-yyyy)
// Author: Denis Gritcyuk <denis@softcomplex.com>; <tspicker@yahoo.com>
// Notes: Permission given to use this script in any kind of applications if
//    header lines are left unchanged. Feel free to contact the author
//    for feature requests and/or donations

function show_calendar2(str_target, str_datetime) {
	var arr_months = ["January", "February", "March", "April", "May", "June",
		"July", "August", "September", "October", "November", "December"];
	var week_days = ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"];
	var n_weekstart = 1; // day week starts from (normally 0 or 1)

	var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt2(str_datetime));
	var dt_prev_month = new Date(dt_datetime);
	dt_prev_month.setMonth(dt_datetime.getMonth()-1);
	var dt_next_month = new Date(dt_datetime);
	dt_next_month.setMonth(dt_datetime.getMonth()+1);
	var dt_firstday = new Date(dt_datetime);
	dt_firstday.setDate(1);
	dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
	var dt_lastday = new Date(dt_next_month);
	dt_lastday.setDate(0);
	
	// html generation (feel free to tune it for your particular application)
	// print calendar header
	var str_buffer = new String (
		"<html>\n"+
		"<head>\n"+
		"	<title>Calendar</title>\n"+
		"</head>\n"+
		"<body bgcolor=\"White\">\n"+
		"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
		"<tr><td bgcolor=\"#003366\">\n"+
		"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
		"<tr>\n	<td bgcolor=\"#003366\"><a href=\"javascript:window.opener.show_calendar2('"+
		str_target+"', '"+ dt2dtstr2(dt_prev_month)+"');\">"+
		"<img src=\"\/RISAS\/RISAS_Images\/RISAS_Layout\/calprev.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"previous month\"></a></td>\n"+
		"	<td bgcolor=\"#003366\" colspan=\"5\">"+
		"<font color=\"white\" face=\"tahoma, verdana\"  size=\"2\"><strong>"
		+arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</strong></font></td>\n"+
		"	<td bgcolor=\"#003366\" align=\"right\"><a href=\"javascript:window.opener.show_calendar2('"
		+str_target+"', '"+dt2dtstr2(dt_next_month)+"');\">"+
		"<img src=\"\/RISAS\/RISAS_Images\/RISAS_Layout\/calnext.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"next month\"></a></td>\n</tr>\n"
	);

	var dt_current_day = new Date(dt_firstday);
	// print weekdays titles
	str_buffer += "<tr>\n";
	for (var n=0; n<7; n++)
		str_buffer += "	<td bgcolor=\"#99CC00\">"+
		"<font color=\"#000066\" face=\"tahoma, verdana\" size=\"2\">"+
		week_days[(n_weekstart+n)%7]+"</font></td>\n";
	// print calendar table
	str_buffer += "</tr>\n";
	while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
		dt_current_day.getMonth() == dt_firstday.getMonth()) {
		// print row heder
		str_buffer += "<tr>\n";
		for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
				if (dt_current_day.getDate() == dt_datetime.getDate() &&
					dt_current_day.getMonth() == dt_datetime.getMonth())
					// print current date
					str_buffer += "	<td bgcolor=\"#FFC299\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td bgcolor=\"#CCE57F\" align=\"right\">";
				else
					// print working days of current month
					str_buffer += "	<td bgcolor=\"white\" align=\"right\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr2(dt_current_day)+"'; window.close();\">"+
					"<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
				else 
					// print days of other months
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr2(dt_current_day)+"'; window.close();\">"+
					"<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
				str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
				dt_current_day.setDate(dt_current_day.getDate()+1);
		}
		// print row footer
		str_buffer += "</tr>\n";
	}
	// print calendar footer
	str_buffer +=
		"</table>\n" +
		"</tr>\n</td>\n</table>\n" +
		"</body>\n" +
		"</html>\n";

	var vWinCal = window.open("", "Calendar", 
		"width=200,height=200,status=no,resizable=yes,top=200,left=200");
	vWinCal.focus();
	vWinCal.opener = self;
	var calc_doc = vWinCal.document;
	calc_doc.write (str_buffer);
	calc_doc.close();
}


function show_calendar2SetFunction(strSetFunction, str_datetime,ID,Per) {
	//alert(strSetFunction);
	
	var arr_months = ["January", "February", "March", "April", "May", "June",
		"July", "August", "September", "October", "November", "December"];
	var week_days = ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"];
	var n_weekstart = 1; // day week starts from (normally 0 or 1)

	var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt2(str_datetime));
	var dt_prev_month = new Date(dt_datetime);
	dt_prev_month.setMonth(dt_datetime.getMonth()-1);
	var dt_next_month = new Date(dt_datetime);
	dt_next_month.setMonth(dt_datetime.getMonth()+1);
	var dt_firstday = new Date(dt_datetime);
	dt_firstday.setDate(1);
	dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
	var dt_lastday = new Date(dt_next_month);
	dt_lastday.setDate(0);
	
	// html generation (feel free to tune it for your particular application)
	// print calendar header
	var str_buffer = new String (
		"<html>\n"+
		"<head>\n"+
		"	<title>Calendar</title>\n"+
		"</head>\n"+
		"<body bgcolor=\"White\">\n"+
		"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
		"<tr><td bgcolor=\"#003366\">\n"+
		"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
		"<tr>\n	<td bgcolor=\"#003366\"><a href=\"javascript:window.opener.show_calendar2SetFunction('"+
		strSetFunction+"', '"+ dt2dtstr2(dt_prev_month)+"', '"+ ID +"', '"+ Per +"');\">"+
		"<img src=\"\/RISAS\/RISAS_Images\/RISAS_Layout\/calprev.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"previous month\"></a></td>\n"+
		"	<td bgcolor=\"#003366\" colspan=\"5\">"+
		"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\"><strong>"
		+arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</strong></font></td>\n"+
		"	<td bgcolor=\"#003366\" align=\"right\"><a href=\"javascript:window.opener.show_calendar2SetFunction('"
		+strSetFunction+"', '"+dt2dtstr2(dt_prev_month)+"', '"+ ID +"', '"+ Per +"');\">"+
		"<img src=\"\/RISAS\/RISAS_Images\/RISAS_Layout\/calnext.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"next month\"></a></td>\n</tr>\n"
	);

	var dt_current_day = new Date(dt_firstday);
	// print weekdays titles
	str_buffer += "<tr>\n";
	for (var n=0; n<7; n++)
		str_buffer += "	<td bgcolor=\"#99CC00\">"+
		"<font color=\"#000066\" face=\"tahoma, verdana\" size=\"2\">"+
		week_days[(n_weekstart+n)%7]+"</font></td>\n";
	// print calendar table
	str_buffer += "</tr>\n";
	while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
		dt_current_day.getMonth() == dt_firstday.getMonth()) {
		// print row heder
		str_buffer += "<tr>\n";
		for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
				if (dt_current_day.getDate() == dt_datetime.getDate() &&
					dt_current_day.getMonth() == dt_datetime.getMonth())
					// print current date
					str_buffer += "	<td bgcolor=\"#FFC299\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td bgcolor=\"#CCE57F\" align=\"right\">";
				else
					// print working days of current month
					str_buffer += "	<td bgcolor=\"white\" align=\"right\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"javascript:window.opener."+strSetFunction+
					"('"+dt2dtstr2(dt_current_day)+"','"+ID+"','"+Per+"'); window.close();\">"+
					"<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
				else 
					// print days of other months
					str_buffer += "<a href=\"javascript:window.opener."+strSetFunction+
					"('"+dt2dtstr2(dt_current_day)+"','"+ID+"','"+Per+"'); window.close();\">"+
					"<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
				str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
				dt_current_day.setDate(dt_current_day.getDate()+1);
		}
		// print row footer
		str_buffer += "</tr>\n";
	}
	// print calendar footer
	str_buffer +=
		"</table>\n" +
		"</tr>\n</td>\n</table>\n" +
		"</body>\n" +
		"</html>\n";

	var vWinCal = window.open("", "Calendar", 
		"width=200,height=200,status=no,resizable=yes,top=200,left=200");
	vWinCal.focus();
	vWinCal.opener = self;
	var calc_doc = vWinCal.document;
	calc_doc.write (str_buffer);
	calc_doc.close();
}

// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt2 (str_datetime) {
	var re_date = /^(\d+)\/(\d+)\/(\d+)$/;
	if (!re_date.exec(str_datetime))
		return alert("Invalid Datetime format: "+ str_datetime);
	return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1));
}
function dt2dtstr2 (dt_datetime) {
	var strDay;
	var strMonth;
	var strYear;
	
	strDay = dt_datetime.getDate();
	strMonth = dt_datetime.getMonth()+1;
	strYear = dt_datetime.getFullYear();
	
	if (strMonth < 10)
	{
		strMonth = "0" + strMonth;
	}
	
	if (strDay < 10)
	{
		strDay = "0" + strDay;
	}

	//alert("Day= " + strDay );
	//alert("Month = " + strMonth );
	//alert("Year = " + strYear );
	return (new String (
		
	
			strDay+"/"+strMonth+"/"+strYear));
}


function y2k(number) { return (number < 1000) ? number + 1900 : number; }

var reason = '';

function isValidDate (myDate,sep) {
// checks if date passed is in valid dd/mm/yyyy format

    if (myDate.length == 10) {
        if (myDate.substring(2,3) == sep && myDate.substring(5,6) == sep) {
            var date  = myDate.substring(0,2);
            var month = myDate.substring(3,5);
            var year  = myDate.substring(6,10);

            var test = new Date(year,month-1,date);

            if (year == y2k(test.getYear()) && (month-1 == test.getMonth()) && (date == test.getDate())) {
                reason = '';
                return true;
				
            }
            else {
                reason = 'valid format but an invalid date';
                return false;
            }
        }
        else {
            reason = 'invalid spearators';
            return false;
        }
    }
    else {
        reason = 'invalid length';
        return false;
    }
}

/////////////////

function isDateValid(txt_Target)
{
	var now = new Date();
	var datToday = new Date(now.getYear(),now.getMonth(),now.getDate());

	//this rountine checks that the date is valid
	//isValidDate
	//this needs to actually mean something
		if (txt_Target.value =="") {
		}
		else
		{			
			if (! isValidDate(txt_Target.value,'/')) {
				alert("Date not valid.\nPlease enter a date in the format 'dd/mm/yyyy'.");
				//set the date to todays date
				txt_Target.value = '';
				txt_Target.select();
				return false;
			}
			
		}
		return true;
	
}


//-->

<!-- END Timestamp Picker Script -------------------------------------------->

