// KLUCIS JavaScript

function ask(message,link) {
 if (confirm(message)) {
   window.location=link;
 }
}

function asksubmit(message) {
  if(confirm(message)) {
    return true;
  } else {
    return false;
  }
}  

function popen(loc) {
  window.open(loc,"photo","height=500,width=750,location=0,scrollbars=1,menubar=1,status=0,resizable=0,top=100,left=100");
}

function show_calendar(str_target, str_datetime) {
	var arr_months = ["Janvāris", "Februāris", "Marts", "Aprīlis", "Maijs", "Jūnijs",
		"Jūlijs", "Augusts", "Septembris", "Oktobris", "Novembris", "Decembris"];
	var week_days = ["Sv", "P", "O", "T", "C", "Pk", "S"];
	var n_weekstart = 1; // day week starts from (normally 0 or 1)

	var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt(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>K.L.U.C.I.S. kalendārs</title>\n"+
		"<meta http-equiv=\"Content-Language\" content=\"lv\">"+
                "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=Windows-1257\">"+
		"<LINK REL=\"stylesheet\" HREF=\"style.css\" TYPE=\"text/css\">"+
		"</head>\n"+
		"<body bgcolor=\"White\">\n"+
		"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
		"<tr><td bgcolor=\"#5A3918\">\n"+
		"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
		"<tr>\n	<td class=\"cal_title\"><a href=\"javascript:window.opener.show_calendar('"+
		str_target+"', '"+ dt2dtstr(dt_prev_month)+"');\">"+
		"<img src=\"images/prev.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"Iepriekšējais mēnesis\"></a></td>\n"+
		"	<td class=\"cal_title\" colspan=\"5\">"+
		arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></td>\n"+
		"	<td class=\"cal_title\" align=\"right\"><a href=\"javascript:window.opener.show_calendar('"
		+str_target+"', '"+dt2dtstr(dt_next_month)+"');\">"+
		"<img src=\"images/next.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"Nākamais mēnesis\"></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 width=38 class=\"cal_wday\">"+
		week_days[(n_weekstart+n)%7]+"</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 class=cal_curday align=\"right\"";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td class=cal_weekend align=\"right\"";
				else
					// print working days of current month
					str_buffer += "	<td class=cal_day align=\"right\"";

				str_buffer += " style=\"cursor : hand;\"";
				str_buffer += " onclick=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"' ; window.close();\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+
					"<font color=\"black\" face=\"Arial\" size=\"2\">";
				else
					// print days of other months
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+
					"<font color=\"gray\" face=\"Arial\" 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("", "Kalendārs",
		"width=266,height=189,status=no,resizable=no,top=200,left=200");
	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 str2dt (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.$1, RegExp.$2-1, RegExp.$3));
}
function dt2dtstr (dt_datetime) {
  var Month = dt_datetime.getMonth()+1;
  var Day = dt_datetime.getDate();
  if(Month < 10) {
    preMonth = '0';
  } else {
    preMonth = '';
  }
  if(Day < 10) {
    preDay = '0';
  } else {
    preDay = '';
  }  
  return (new String (
    dt_datetime.getFullYear()+"-"+preMonth+Month+"-"+preDay+Day));
}

