// Title: Timestamp picker
// Description: See the demo at url
// URL: http://us.geocities.com/tspicker/
// Script featured on: http://javascriptkit.com/script/script2/timestamp.shtml
// Version: 1.0
// Date: 12-05-2001 (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

// Changes by Bogdan Stancescu <bogdan@lanifex.com>
// Aug 2002: Output dates now are properly formatted as YYYY-MM-DD

  function show_calendar(str_target, str_datetime, str_htmltarget) {
    //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 arr_months = ["Январь", "Февраль", "Март", "Апрель", "Май", "Июнь",
      "Июль", "Август", "Сентябрь", "Октябрь", "Ноябрь", "Декабрь"];
    var week_days = ["Вс", "Пн", "Вт", "Ср", "Чт", "Пт", "Сб"];
    var n_weekstart = 1; // day week starts from (normally 0 or 1)

    var dt_datetime = (str_datetime == null || str_datetime =="" || str_datetime=="0000-00-00" ?  new Date() : str2dt(str_datetime));
	var dt_today = new Date();
    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 (
      "<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" style=\"background: #050505; border: 3px black;\">\n"+
      "<tr><td bgcolor=\"#010101\">\n"+
      "<table cellspacing=\"0\" cellpadding=\"3\" border=\"0\">\n"+
      "<tr>\n	<td bgcolor=\"#010101\"><a style=\"text-decoration: none\" href=\"javascript:show_calendar('"+
      str_target+"', '"+ dt2dtstr(dt_prev_month)+"', '"+ str_htmltarget+"');\">"+
      "&nbsp;&lt;&nbsp;</a></td>\n"+
      "	<td bgcolor=\"#010101\" colspan=\"5\">"+
      "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"
      +arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></td>\n"+
      "	<td bgcolor=\"#010101\" align=\"right\"><a style=\"text-decoration: none\" href=\"javascript:show_calendar('"
      +str_target+"', '"+dt2dtstr(dt_next_month)+"', '"+ str_htmltarget+"');\">"+
      "&nbsp;&gt;&nbsp;</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=\"#ffffff\" style=\"padding: 4px;\">"+
      "<font color=\"#909090\" 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 header
      str_buffer += "<tr>\n";
      for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
          if (dt_current_day.getDate() == dt_today.getDate() &&
            dt_current_day.getMonth() == dt_today.getMonth())
            // print current date
            str_buffer += "	<td bgcolor=\"#FF1B31\" align=\"right\" style=\"padding: 4px; text-align: center;\">";
          else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
            // weekend days
            str_buffer += "	<td bgcolor=\"#0a0300\" align=\"right\" style=\"padding: 4px; text-align: center;\">";
          else
            // print working days of current month
            str_buffer += "	<td bgcolor=\"#000000\" align=\"right\" style=\"padding: 4px; text-align: center;\">";

          if (dt_current_day.getMonth() == dt_datetime.getMonth())
            // print days of current month
            // str_buffer += "<a href=\"javascript:window.opener."+str_target+
			{
			if (activedates[dt_current_day.getMonth()*12+dt_current_day.getDay()+dt_current_day.getYear()*31*12]==1)
			{
             str_buffer += "<a style=\"text-decoration: none\" href=\"javascript:go_mycal('"+str_target+"', '"+dt2dtstr(dt_current_day)+"');\">"+ "<font color=\"red\" face=\"tahoma, verdana\" size=\"2\">";
			} else {
             str_buffer += "<a style=\"text-decoration: none\" href=\"javascript:go_mycal('"+str_target+"', '"+dt2dtstr(dt_current_day)+"');\">"+ "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">";
			};
          } else
            // print days of other months
            // str_buffer += "<a href=\"javascript:window.opener."+str_target+
            str_buffer += "<a style=\"text-decoration: none\" href=\"javascript:go_mycal('"+str_target+"', '"+dt2dtstr(dt_current_day)+"');\">"+
            "<font color=\"#505050\" 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" +
      "\n";

    //var vWinCal = window.open("", "Calendar",
    //  "width=200,height=200,status=no,resizable=yes,top=200,left=200");
    //vWinCal.opener = self;
    //var calc_doc = vWinCal.document;
    //calc_doc.write (str_buffer);
    //calc_doc.close();
    var el = document.getElementById(str_htmltarget);
    if (el)
      el.innerHTML = str_buffer;
  }

  // datetime parsing and formatting routimes. modify them if you wish other datetime format
  function str2dt (str_datetime) {
    var re_date = /^(\d+)\-(\d+)\-(\d+)/;
	var tomorr = new Date();
	tomorr.setDate(tomorr.getDate()+1);
    if (!re_date.exec(str_datetime))
//      return alert("Invalid Datetime format: "+ str_datetime);
      return (tomorr);
    return (new Date (RegExp.$1, RegExp.$2-1, RegExp.$3));
  }

  function dt2dtstr (dt_datetime) {
    var Month=new String(dt_datetime.getMonth()+1);
    if (Month.length==1) {
      Month="0"+Month;
    }
    var Day=new String(dt_datetime.getDate());
    if (Day.length==1) {
      Day="0"+Day;
    }
    return (new String (
        dt_datetime.getFullYear()+"-"+Month+"-"+Day+" "));
  }

  function dt2tmstr (dt_datetime) {
    return (new String (
        dt_datetime.getHours()+":"+dt_datetime.getMinutes()+":"+dt_datetime.getSeconds()));
  }