// Version 1.5

/**************************ENLARGEIT begin ***************************************************/
/*  This comment MUST stay intact for legal use, so don't remove it. EnlargeIt! 
v1.1 - (c) 2008 Timo Sack - http://enlargeit.timos-welt.de This program is free 
software: you can redistribute it and/or modify it under the terms of the GNU 
General Public License as published by the Free Software Foundation, either 
version 3 of the License, or (at your option) any later version. See LICENSE.TXT 
for details. */

// modify these
var enl_gifpath='http://www.klinikum.uni-muenchen.de/bilder/layout/enlargeit/'; // path to graphics
var enl_brdsize=12;    // border thickness (5-30)
var enl_brdcolor='';   // border color (white if empty)
var enl_brdbck='';     // border background pic, '' for no pic
var enl_brdround=1;    // use rounded borders (Mozilla/Safari only)
var enl_maxstep=18;    // ani steps (10-30)
var enl_speed=12;      // time between steps
var enl_ani=5;         // 0=no,1=fade,2=glide,3=bumpglide,4=smoothglide,5=expglide
var enl_opaglide=0;    // glide transparency
var enl_shadow=1;      // shadow under border
var enl_shadowsize=1;  // size of shadow right/bottom (0-20)
var enl_shadowcolor='';// shadow color (empty: black)
var enl_shadowintens=9;// shadow intensity (5-30)
var enl_dark=1;        // darken screen (0=off/1=on/2=keep dark when nav)
var enl_darkprct=20;   // how dark the screen should be (0-100)
var enl_darksteps=9;   // how long darkening should take
var enl_center=1;      // center enlarged pic on screen
var enl_drgdrop=1;     // enable drag&drop for pics
var enl_preload=1;     // preload next/prev pic
var enl_titlebar=1;    // show pic title bar
var enl_keynav=1;      // key navigation
var enl_wheelnav=1;    // mouse wheel navigation
var enl_titletxtcol='';// color of title bar text (empty: dark grey)
var enl_ajaxcolor='';  // background color for AJAX (empty: light grey)
var enl_usecounter=0;  // hidden call of counter page
var enl_counterurl=''; // base URL of counter page
var enl_btnact='bact.png';               // active buttons
var enl_btninact='binact.png';           // inactive buttons
var enl_pluscur='pluscur_new.cur';           // mouse cursor of thumbnail
var enl_minuscur='minuscur_new.cur';         // mouse cursor of enlarged image
var enl_noflash='No flash plugin found!';// msg if no flash plugin found
var enl_canceltext='Click to cancel';    // tooltip to cancel loading

// don't modify next line
var enl_buttonurl = new Array(),enl_buttontxt = new Array(),enl_buttonoff = new Array();

// define your buttons here
enl_ani = 0;
enl_brdsize = 25;
enl_shadow = 1;
enl_shadowintens = 20;
enl_shadowsize = 1;
enl_dark = 2;
enl_darkprct = 50;
enl_drgdrop = 0;
enl_darksteps = 1;
enl_brdbck = '';
enl_buttonurl[0] = 'prev';
enl_buttontxt[0] = 'Previous picture [left arrow key]';
enl_buttonoff[0] = -144;
enl_buttonurl[1] = 'next';
enl_buttontxt[1] = 'Next picture [right arrow key]';
enl_buttonoff[1] = -162;
enl_buttonurl[2] = 'close';
enl_buttontxt[2] = 'Close [Esc key]';
enl_buttonoff[2] = -108;

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/**************************ENLARGEIT end ***************************************************/


function zoom_out() {
      document.all.bild_klein.style.display = "none";  
      document.all.bild_gross.style.display = "block";          
}

function zoom_in() {
      document.all.bild_klein.style.display = "inline";  
      document.all.bild_gross.style.display = "none";          
}


function changeFlipList(id) {
   var aktion = "nicht einklappen";
   var allTagsLI = document.getElementsByTagName("li");
   
   if (document.getElementById(id).style.display != "none") aktion="einklappen";

   
   for (i=0; i < allTagsLI.length; i++) {
      if (document.getElementsByTagName("li")[i].parentNode.className == "serviceKategorie") {  
         document.getElementsByTagName("li")[i].parentNode.style.display="none";
         document.getElementsByTagName("li")[i].parentNode.parentNode.className="ausklappen";	
      }
   }
   
   if (aktion=="einklappen")
   {
      document.getElementById(id).style.display="none";	
      document.getElementById(id).parentNode.className="ausklappen";
   } else {
      document.getElementById(id).style.display="block";	
      document.getElementById(id).parentNode.className="ausgeklappt";
   }
}


function printFooter()  {
      var heute = new Date();
      var jahr = heute.getYear();
      var monat = heute.getMonth()+1;
      var tag = heute.getDate();
      document.all["print_data"].innerHTML = window.document.URL+"<br>ausgedruckt am "+tag+"."+monat+"."+jahr;
}

function go(x)  {
      window.location.href=x;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}


startList = function() {
   var allTagsLI = document.getElementsByTagName("li");
   
   for (i=0; i < allTagsLI.length; i++) {
      if (document.getElementsByTagName("li")[i].parentNode.className == "serviceKategorie") {  
         document.getElementsByTagName("li")[i].parentNode.style.display="none";
         document.getElementsByTagName("li")[i].parentNode.parentNode.className="ausklappen";	
      }
   }
   
   // noetig fuer enlargeit
   enl_init();
}



/**
 * Kalender
 */

function newDate(s) {
	var t = s.split('.');
	if ( t.length == 3 )
		return new Date( t[2], t[1]-1, t[0] );
	else
		return null;
}

Date.prototype.equals = function( otherDate ) {
	return ( this.getDate() == otherDate.getDate() && this.getMonth() == otherDate.getMonth() && this.getFullYear() == otherDate.getFullYear() );
}

Date.prototype.nextDate = function() {
	var day = this.getDate();
	var month = this.getMonth();
	var year = this.getFullYear();
	
	var months_total_days = new Array( 31, 28, 31, 30, 31, 30, 30, 31, 30, 31, 30, 31 );
	
	if ( day >= months_total_days[month] && !( day == 28 && month == 1 && year % 4 == 0 ) ) { // valid until 2099
		day = 1;
		month++;
		if ( month > 11 ) {
			month = 0;
			year++;
		} 
	} else {
		day++;
	}
	
	return new Date( year, month, day);
}

Date.prototype.toGermanString = function() {
	var day = this.getDate();
	var month = this.getMonth() + 1;
	var year = this.getFullYear();
	
	if ( day < 10 ) day = "0" + String(day);
	if ( month < 10 ) month = "0" + String(month);
	
	return day + '.' + month + '.' + year;
}


/**
 * http://javascript.about.com/library/blweekyear.htm
 */
Date.prototype.getWeek = function() {
	var onejan = new Date(this.getFullYear(),0,1);
	return Math.ceil((((this - onejan) / 86400000) + onejan.getDay()+1)/7);
}





/**
 * https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/Array/indexOf
 */
if (!Array.prototype.indexOf)
{
  Array.prototype.indexOf = function(elt /*, from*/)
  {
    var len = this.length >>> 0;

    var from = Number(arguments[1]) || 0;
    from = (from < 0)
         ? Math.ceil(from)
         : Math.floor(from);
    if (from < 0)
      from += len;

    for (; from < len; from++)
    {
      if (from in this &&
          this[from] === elt)
        return from;
    }
    return -1;
  };
}

/**
 * http://stackoverflow.com/questions/5223/length-of-javascript-associative-array
 */
Object.size = function(obj) {
	var size = 0, key;
	for (key in obj)
		if (obj.hasOwnProperty(key)) 
			size++;
	return size;
};







function startCalendar() {
	if ( !window.json_events )
		return;

	//hashClock ist das globale Array was die Kalendardaten beinhaltet
	//
	// Die JSON Struktur ist wie folgt:
	// {'datumA':[{titelA1, urlA1,zeitA1},{titelA2, urlA2,zeitA2},..], 'datumB':[{titelB1, urlB1,zeitB1},{titelB2, urlB2,zeitB2},..],}
	// Die Daten sind nach Datum und Uhrzeit geordnet
	
	hashClock = [];
	
	var months_total_days = [ 31, 28, 31, 30, 31, 30, 30, 31, 30, 31, 30, 31 ];
	
	for ( var ii = 0; ii < window.json_events.length; ii++ ) {
		var event = window.json_events[ii];
		
		if ( 'start' in event && event.start.length > 0 )
			var startdate = newDate(event.start);
		else
			continue;
		if ( 'end' in event && event.end.length > 0 )
			var enddate = newDate(event.end);
		else
			enddate = startdate;
		
		var d = startdate;
		var filter = parse_terminserie(event.terminserie);
		while ( true ) {
			if ( filter.check(d) ) {
				var currDate = d.toGermanString();
				if ( hashClock[currDate] == undefined )
					hashClock[currDate] = [];
				hashClock[currDate].push(event);
			}
			
			if ( d.equals(enddate) )
				break;
			else
				d = d.nextDate();
		}
	}
	

	document.getElementById('calendarBox').style.display = 'block'; // anzeigen vom Kalendar, da bei Default versteckt
	
	// Die hashClock Struktur sieht nach dem eval folgendermassen aus:
	// hashClock[...]
	// 	01.01.2009[..]
	//	02.01.2009[..]
	//	...
	//	01.10.2010[...]
	//		0
	//		1
	//		...
	// letzeres Beinhaltet zB die Einträge .title, .link
	// d.h. ein Beispielobjekt wäre: hashClock[01.01.2010][0]
	// Dessen Titel wäre: hashClock[01.01.2010][0].title
	
	//Sollte Javascript auf dem Benutzersystem nicht funktionieren, wäre es schön, wenn die Kalendarsuche nicht erscheint,
	// deswegen wäre es von Interesse das gesammte Div hier zeichnen zu lassen, statt im Template.
	// Der Nachteil ist jedoch, dass wir einen absoluten Pfad zum Go-Button brauchen.
	
	
	//Erstellen der Divs für den Kalendar und deren Suche
		//var d = document.getElementById('calendarBox');
		//d.innerHTML = ""
	
	//Der Kalendar wir dargestellt
	writeCal();
	
	/**
	 * Zeige Termine für heute an
	 */
	loadData('heute');
}


function parse_terminserie( terminserie ) {
	var rDailyWorkingDays = /täglich werktags/;
	var rDaily = /täglich/;
	var rWeekly = /jeden (montag|dienstag|mittwoch|donnerstag|freitag|samstag|sonntag)/;
	var rMonthly = /jeden (ersten|zweiten|dritten|vierten|letzten) (montag|dienstag|mittwoch|donnerstag|freitag|samstag|sonntag) im monat/;
	var rSomeWeekly = /jeden (zweiten|dritten|vierten) (montag|dienstag|mittwoch|donnerstag|freitag|samstag|sonntag)/;
	var rExcludeDays = /au(?:ss|ß)er (\d{1,2}.\d{1,2}(?:.\d{2.4})?)(?:\s*,\s*(\d{1,2}.\d{1,2}(?:.\d{2.4})?))*/;
	
	terminserie = terminserie.toLowerCase(); /** case insensitive */
	terminserie = terminserie.replace( /\s+/, ' ' ); /** ignore multiple spaces */
	var filter;
	if ( terminserie.length == 0 ) {
		/**
		 * Keine Terminserie: Gebe true zurück
		 */
		filter = {
			check : function( myDate ) {
				return true;
			}
		}
	} else if ( match = rDailyWorkingDays.exec(terminserie) ) {
		filter = {
			check : function( myDate ) {
				return ( myDate.getDay() > 0 && myDate.getDay() < 6 );
			}
		}
	} else if ( match = rDaily.exec(terminserie) ) {
		filter = {
			check : function( myDate ) {
				return true;
			}
		}
	} else if ( match = rWeekly.exec(terminserie) ) {
		filter = {
			dow : ['sonntag','montag','dienstag','mittwoch','donnerstag','freitag','samstag'].indexOf(match[1]),
			check : function( myDate ) {
				return ( myDate.getDay() === this.dow );
			}
		}
	} else if ( match = rMonthly.exec(terminserie) ) {
		filter = {
			index : ['letzten','ersten','zweiten','dritten','vierten'].indexOf(match[1]),
			dow : ['sonntag','montag','dienstag','mittwoch','donnerstag','freitag','samstag'].indexOf(match[2]),
			check : function( myDate ) {
				var total_days_for_month = [ 31, 28, 31, 30, 31, 30, 30, 31, 30, 31, 30, 31 ][myDate.getMonth()];
				return ( myDate.getDay() === this.dow && ( Math.ceil(day/7) === this.index || ( this.index === 0 && total_days_for_month - myDate.getDate() < 8 ) ) );
			}
		}
	} else if ( match = rSomeWeekly.exec(terminserie) ) {
		filter = {
			index : ['placeholder0','placeholder1','zweiten','dritten','vierten'].indexOf(match[1]),
			dow : ['sonntag','montag','dienstag','mittwoch','donnerstag','freitag','samstag'].indexOf(match[2]),
			woy : null,
			check : function( myDate ) {
				var total_days_for_month = [ 31, 28, 31, 30, 31, 30, 30, 31, 30, 31, 30, 31 ][myDate.getMonth()];
				if ( myDate.getDay() === this.dow ) {
					if ( this.woy == null )
						this.woy = myDate.getWeek();
					return ( myDate.getWeek() - this.woy % this.index === 0 );					
				}
			}
		}
	} else {
		/** 
		 * Wenn das Feld 'terminserie' nicht geparst werden kann, wird der
		 * Termin im Zweifel täglich angezeigt. Gebe immer true zurück
		 */
		filter = {
			check : function( myDate ) {
				return true;
			}
		}
	}
	
	/**
	 * Falls bestimmte Termine einer Terminserie ausfallen, werden diese
	 * hier behandelt. Dem Filter wird ein zweiter Filter vorgeschaltet.
	 */
	if ( match = rExcludeDays.exec(terminserie) ) {
		var excluded_days = [];
		for ( var ii in match ) {
			var day, month, year;
			if ( m = /^(\d{1,2}).(\d{1,2}).(\d{4})$/.exec(match[ii]) ) {
				day = m[1];
				month = m[2] - 1;
				year = m[3];
			} else if ( m = /^(\d{1,2}).(\d{1,2}).(\d{2})$/.exec(match[ii]) ) {
				day = m[1];
				month = m[2] - 1;
				year = 2000 + m[3];
			} else if ( m = /^(\d{1,2}).(\d{1,2})$/.exec(match[ii]) ) {
				day = m[1];
				month = m[2] - 1;
				year = 0;
			}
			excluded_days.push( [year, month, day] );
		}
			
		return {
			filter : filter,
			implicit_year : null,
			check : function( year, month, day ) {
				for ( ii in excluded_days ) {
					var ed = excluded_days[ii];
					if ( ed[0] == year && ed[1] == month && ed[2] == day ) {
						return false;
					} else if ( ed[0] == 0 && ed[1] == month && ed[2] == day ) {
						if ( this.implicit_year == null ) {
							this.implicit_year = year;
							return false;
						} else if ( this.implicit_year == year ) {
							return false;
						}
					}
				}
				/**
				 * Falls der Termin nicht ausfallt, gebe das Ergebnis des 
				 * eigentlichen Filters zurück
				 */
				return this.filter.check( year, month, day );
			}
		}
	} else {
		return filter;
	}
}

function printEvent( event ) {
	var outputHTML = "";
	
	outputHTML += "<div style=\"margin-top: 20px;\">";
	if ( event.bild ) {
		outputHTML += "<div class=\"pic\">";
		outputHTML += "<a href=\"" + event.link + "\"><img src=\"" + event.bild + "\"></a>";
		outputHTML += "</div>";
	}
	outputHTML += "<h2><a href=\"" + event.link + "\">" + event.title + "</a></h2>";
	if ( event.untertitel )
		outputHTML += "<h3>" + event.untertitel + "</h3>";
	outputHTML += "<div class=\"text\"><p>" + event.dauer;
	if ( event.terminserie )
		outputHTML += "<br/>" + event.terminserie;
	if ( event.ort )
		outputHTML += "<br/>" + event.ort;
	outputHTML += "</p>";
	outputHTML += "<p>" + event.teasertext + " <a href=\"" + event.link + "\">[mehr...]</a></p>";
	outputHTML += "</div><div style=\"clear: both;\">&nbsp;</div></div>";
	
	return outputHTML;
}


function loadData(myData) {
	var d = document.getElementById('calendarInhalt'); //Output
	var outputHTML = "<div class=\"calendarInhalt\">";
	
	// Wir holen aus unserem Array alle Einträge die dem ausgewähltem Datum entsprechen
	if ( myData == 'heute' ) {
		var today = new Date();
		var todayString = today.toGermanString();
		var hCtoday = [];
		if ( todayString in hashClock )
			hCtoday = hashClock[todayString];

		var nextDate = today.nextDate();
		var hCnext = {};
		var cntDays = 0;
		while ( true ) {
			var nextDateString = nextDate.toGermanString();
			if ( nextDateString in hashClock && hashClock[nextDateString].length > 0 )
				hCnext[nextDateString] = hashClock[nextDateString];
			if ( Object.size(hCnext) >= 5 )				
				break;
			if ( cntDays == 28 )
				break;
			nextDate = nextDate.nextDate();
			cntDays++;
		}
	} else {
		var hCtoday = [];
		var hCnext = {};
		if ( myData in hashClock )
			hCnext[myData] = hashClock[myData];
		else
			hCnext[myData] = [];
	}
	
	if ( myData == 'heute' ) {
		outputHTML += "<div class=\"container_element\">";
		outputHTML += "<h1>Veranstaltungen heute</h1>";
		for ( var ii = 0; ii < hCtoday.length; ii++ )
			outputHTML += printEvent(hCtoday[ii]);
		if ( hCtoday.length == 0 )
			outputHTML += "<div class=\"titelleiste\">Heute finden keine Veranstaltungen statt.</div>";
		outputHTML += "</div>";
	}
	
	if ( myData != 'heute' || Object.size(hCnext) > 0 ) {
		for ( var nextDateString in hCnext ) {
			if ( typeof nextDateString == 'function' )
				continue;
			outputHTML += "<div class=\"container_element\">";
			outputHTML += "<h1>Veranstaltungen am " + nextDateString + "</h1>";
			for ( var ii = 0; ii < hCnext[nextDateString].length; ii++ )
				outputHTML += printEvent(hCnext[nextDateString][ii]);
			outputHTML += "</div>";
		}
		if ( Object.size(hCnext) == 0 )
			outputHTML += "<div class=\"titelleiste\">Am " + myData + " finden keine Veranstaltungen statt.</div>";
	}

	outputHTML += "</div>";
	d.innerHTML = outputHTML;
}

function writeCal(){

    monatsNamen = new Array ("Jan", "Feb", "M&auml;rz", "April", "Mai", "Juni", "Juli", "Aug", "Sept", "Okt", "Nov", "Dez");
    
    var date = new Date();
	if (arguments.length == 2) { //Monat vor bzw zurück
        var mm = arguments[0];
        var yy = arguments[1];
        if (mm == date.getMonth() + 1) {
            var dd = date.getDate();
        } else {
            var dd = 0;
        }
    }
    else { // Laden des Kalendars - Heute
        var dd = date.getDate();
        var mm = (date.getMonth()+1);
        var yy = date.getYear();
    }
    
    var thisYear = date.getYear();
    if (thisYear < 999 ) {
        thisYear += 1900;
    }
    if (yy < 999 ) {
        yy += 1900;
    }
   
    if (mm == 12) {
        var nextMonth = 1;
        var nextYear = yy + 1;
    } else {
        var nextMonth = ( mm + 1);
        var nextYear = yy;
    }
    
    if (mm == 1) {
        var prevMonth = 12;
        var prevYear = yy - 1;
    } else {
        var prevMonth = (mm - 1);
        var prevYear = yy;
    }
    

    var htmlOutput="";
    htmlOutput += "<div id=\"calendarBox_top\">"
    +"<div style=\"float:left;\">"
    +"<a href=\"javascript:writeCal();loadData('heute')\">Heute</a>"
    +"</div>"
    +"<div style=\"float: right;\">"
    +"<a href=\"javascript:writeCal("+prevMonth+","+prevYear+");\">&laquo;</a>&nbsp;"
    +"<b>"+monatsNamen[mm-1]+" "+yy+"</b>"
    +"&nbsp;<a href=\"javascript:writeCal("+nextMonth+","+nextYear+");\">&raquo;</a>"
    +"</div>"
    +"</div>"
    +"<div style=\"clear: both;\"></div>"
    +"<table id=\"calendarBox_table\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\">"
    +"<tr><th>Mo</th><th>Di</th><th>Mi</th><th>Do</th><th>Fr</th><th>Sa</th><th>So</th></tr>"
    +"<tr>"
    
    //Wochentag des 1. des Monats ermitteln
    date.setDate(1);
    date.setMonth(mm-1);
    date.setYear(yy);
    var kk=date.getDay();
    if (kk == 0) {
        kk=7;
    }
    
    //erste Zeile auffuellen
    for (var ii=1; ii<kk; ii++) {
        htmlOutput += "<td></td>";
    }

	var myMonth;
    var myDay;
	
	if (mm < 10) {
		myMonth = "0" + String(mm);
	} else {
		myMonth = String(mm);
	}
	
    for(ii=1; ii<32; ii++) {

        if (ii < 10) {
            myDay = "0" + String(ii);
        } else {
            myDay = String(ii);
        }

        if ((ii == dd) && (thisYear == yy)) {
            // Den aktuellen Tag fett <-- Nur für das aktuelle Jahr!
            htmlOutput += "<td class=\"today\">";
        } else {
            htmlOutput += "<td>";
        }
		
        if (hashClock[myDay+"."+myMonth+"."+yy] != undefined){
			// Wir überprüfen ob wir im Array einen Eintrag mit dem Datum haben, falls das Array exisitert haben wir mindestens einen.
			// In diesem Fall erstellen wir einen Link mit dem wir die Wiedergabe der Einträge realisieren können.
			
			htmlOutput += "<a href=\"javascript:loadData('"+myDay+"."+myMonth+"."+yy+"')\">"+ii+ "</a></td>";
		} else {
			htmlOutput += ii+"</td>";
		}
        kk++;
        if (kk > 7) {
            htmlOutput += "</tr><tr>";
            kk = 1;
        }
    }
    htmlOutput += "</tr></table>";
    var d = document.getElementById('calendarBox_sheet');
	d.innerHTML = htmlOutput;
}



function unescape_html(str) {
	return str.replace( /&lt;/g, "<").replace( /&gt;/g, ">").replace( /&amp;/g, "&");
}

function kum_onload() {
	/**
	 * Aufklappbare Sericekategorien starten
	 */
	startList();
	
	/**
	 * Kalender starten
	 */
	if ( window.json_events && document.getElementById('calendarInhalt') != null && document.getElementById('calendarBox') != null ) {
			startCalendar();
	}
}

if ( typeof window.onload == 'function' ) {
	var other = window.onload;
	window.onload = function() {
		other();
		kum_onload();
	};
} else {
	window.onload = kum_onload;
}