var nCurrentYear = 0;
var nCurrentMonth = 0;
var WEEK_START = 1;

var nFirstYear = nCurrentYear;
var nFirstMonth = nCurrentMonth;

var podInYear = new Array();

var arrayAsAString = '2010=246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,292,293,294,295,296,297,298,299,300,301,302,303,304,306,307,308,310,311,313,315,316,317,319,320,321,322,323,324,325,326,327,328,329,332,338,339,342,343,345,347,348,350,351,352,356,365|2011=8,9,28,29,33,34,43,46,57,70,71,78,99,113,120,121,134,151,210';
podInYear = arrayAsAString.split("|");

function kalendarNad(day,month,year){

var sel_datumPodE = day + '.' + month + '.' + year;

    //alert(sel_datumPodE);   
    getDateAJAX(sel_datumPodE) ;
}

function skryKalendar(){
  var targetDiv = document.getElementById("targetDivKalendar");
  targetDiv.innerHTML = "<div></div>";
  targetDiv.style.display = "none";
  document.body.style.cursor='';
 }


function getDayName(i) {
	var skDay = new Array("Mon",
						"Tue",
						"Wed",
						"Thu ",
						"Fri",
						"Sat ",
						"Sun");
	return skDay[i];
}

function getDayOfMonth() {
	var monthLength = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
	if ((((nCurrentYear % 4 == 0) && (nCurrentYear % 100 != 0)) || (nCurrentYear % 400 == 0)) && nCurrentMonth == 2) {
		return 29;
	}
	return monthLength[nCurrentMonth-1];
}

function getDayOfYear() {
	if ((((nCurrentYear % 4 == 0) && (nCurrentYear % 100 != 0)) || (nCurrentYear % 400 == 0))) {
		var dayOfYear = new Array(0,31,60,91,121,152,182,213,244,274,305,335);
	} else {
		var dayOfYear = new Array(0,31,59,90,120,151,181,212,243,273,304,334);
	}
	return dayOfYear[nCurrentMonth-1];
}

function isPod(day) {
	var arActYear = new Array();
	for(var i=0; i<podInYear.length; i++) {
		arActYear = podInYear[i].split("=");
		if(arActYear[0] == nCurrentYear) {
			var doy = arActYear[1].split(",");
			for(var j=0; j<doy.length; j++) {
				if(doy[j] == day) {
					return true;
				}
			}
		}
	}
	return false;
}

function getMonthName(i) {
	var skMonthNames = new Array("January",
								"February",
								"March",
								"April",
								"May",
								"June",
								"July",
								"August",
								"September",
								"October",
								"November",
								"December");
	return(skMonthNames[i]);
}

function prevMonth(iMonth) {
  nCurrentMonth -= iMonth;
  if (nCurrentMonth < 1) {
	nCurrentMonth += 12;
	prevYear();
  }
}

function nextMonth(iMonth) {
  nCurrentMonth += iMonth;
  if (nCurrentMonth > 12) {
		nCurrentMonth -= 12;
		nextYear();
  }
}


function prevYear() {
  nCurrentYear--;
}

function nextYear() {
  nCurrentYear++;
}

function clickCalendar(day, month, year) {
var sel_datumPodE = day + '.' + month + '.' + year;

	
	window.location.href = '/search_datum.asp?sel_datumPodE=' + sel_datumPodE;
}

function genCalendars(id, change) {
	var strHTML = "";

	var dt = new Date();
	if (dt.getYear()<1000) dt.setYear(dt.getYear()+1900);
	dt.setDate(1);

	strHTML += "<TABLE border='0' width='135' cellspacing='0' cellpadding='0' align='center'><TR><TD align='left' width='12'>";
	if (change && new Date(nCurrentYear, nCurrentMonth-1, 1) > dt) {
		strHTML += "<IMG src='/images/sipka_vlavo.gif' onClick='javascript:goPrevMonth(\"" + id + "\",true);skryKalendar();' style='cursor: pointer;'>"
	} //else alert('e-e');
	strHTML += "</TD><TD align='center' class='menu_header'><a href='/kalendar.asp?typ=0' class='bluelink'>" + getMonthName(nCurrentMonth-1) + " " + nCurrentYear + "</a></TD><TD align='right' width='12'>"
	if (change) {
		strHTML += "<IMG src='/images/sipka_vpravo.gif' onClick='javascript:goNextMonth(\"" + id + "\",true);skryKalendar();' style='cursor: pointer;'></TD></TR>";
	}
	strHTML += "</table>";

	strHTML += "<table border='0' cellpadding='0' cellspacing='0'><tr><td style='border: 1px solid #1A65AC;'>";
	strHTML += "<TABLE border='0' width='135' cellspacing='0' cellpadding='1' align='center' ><tr>";

	for(var i=0; i <=6; i++) {
		strHTML += "<td width='15' class='td_yellow' align='center'><FONT class='blacktxtSmall'>" + getDayName(i) + "</FONT></td>";
	}

	strHTML += "</tr></table>";

	strHTML += "<TABLE border='0' width='135' cellspacing='0' cellpadding='2' align='center' bgcolor='white'>";

	var ciselko = new Date(nCurrentYear, nCurrentMonth-1, 1).getDay();
	if(ciselko == 0) {
		ciselko = 7;
	}

	var index = 1 + WEEK_START - ciselko;
	var numDays = getDayOfMonth();
	var dayInYear = getDayOfYear();

	while(index <= numDays) {
		strHTML += "<tr>";

		for(var i=1; i<=7; i++) {
			if(index <= numDays && index > 0) {
				dayInYear ++;
				if(isPod(dayInYear)) {
					if(i==6 || i==7) {
					    if (change){
						    strHTML += "<TD width='15' height='15' bgColor='#E4E4E4' align='center' onMouseOver=\"bgColor='#FFEF8C'\" onClick=\"javascript:bgColor='#FFEF8C';kalendarNad("+index+","+nCurrentMonth+","+nCurrentYear+");\" onMouseOut=\"bgColor='#E4E4E4'\" style=\"cursor: pointer;\">";
						    strHTML += "<u>" + index + "</u></TD>";
						    }
						else
						    {
						    strHTML += "<TD width='15' height='15' bgColor='#E4E4E4' align='center' onMouseOver=\"bgColor='#FFEF8C'\" onMouseOut=\"bgColor='#E4E4E4'\"><A class='blacklink' href='javascript:clickCalendar("+index+","+nCurrentMonth+","+nCurrentYear+");'><u>" + index + "</u></A></TD>";
                            }
    						
					} else {
					    if (change){
						    strHTML += "<TD width='15' height='15' align='center' onMouseOver=\"bgColor='#FFEF8C'\" onClick=\"javascript:bgColor='#FFEF8C';kalendarNad("+index+","+nCurrentMonth+","+nCurrentYear+");\" onMouseOut=\"bgColor='#FFFFFF'\" style=\"cursor: pointer;\">";
						    strHTML += "<u>" + index + "</u></TD>";
						}
						else						
						{
    						strHTML += "<TD width='15' height='15' align='center' onMouseOver=\"bgColor='#FFEF8C'\" onMouseOut=\"bgColor='#FFFFFF'\"><A class='blacklink' href='javascript:clickCalendar("+index+","+nCurrentMonth+","+nCurrentYear+");' ><u>" + index + "</u></A></TD>";
    					}	

					}
				} else
					if(i==6 || i==7) {
						strHTML += "<TD width='15' height='15' class='td_darkgrey' align='center'><FONT class='graytxt'>" + index + "</FONT></TD>";
					} else {
						strHTML += "<TD width='15' height='15' align='center'><FONT class='graytxt'>" + index + "</FONT></TD>";
				}
			} else {
				strHTML += "<TD width='15' height='15' align='center'><img src='/images/blank.gif' border='0' width='1' height='1'></TD>";
			}
			index++;
			//strHTML += "</td>";
		}
	}

	strHTML += "</tr>"
	strHTML += "</td></tr></table>"


	return strHTML;
}

function setCurrentMonth() {
  var dt = new Date();
  curYear=dt.getYear()
  if (curYear < 1000) curYear+=1900
  nCurrentYear = curYear;
  nCurrentMonth = dt.getMonth()+1;
}

function goNextMonth(id, change) {
	var strHTML = "";
	nextMonth(1);
	strHTML += genCalendars(id, change);
	document.getElementById(id).innerHTML = strHTML;
}

function goPrevMonth(id, change) {
	var strHTML = "";
	prevMonth(1);
	strHTML += genCalendars(id, change);
	document.getElementById(id).innerHTML = strHTML;
}

function startCalendar(id, change) {
	setCurrentMonth();
	var strHTML = "";
	strHTML += genCalendars(id, change);
	document.getElementById(id).innerHTML = strHTML;
}