//The source of the images, dynamically loaded
var of_img_src;
var of_img_over_src;
var oo_img_src;
var oo_img_over_src;

//das Komponisten Window öffnen
function openKomponist(id, uilang){
	var url = "show_komponist.php?id=" + id + "&uilang=" + uilang;
	var komponist = window.open(url,"Komponist", "dependent=0, resizable=1, menubar=0, scrollbars=1, status=0, width=500, height=400");
	komponist.focus();
}

//das Cast Window öffnen
function openCast(id, uilang){
	var url = "cast.php?id=" + id + "&uilang=" + uilang;
	var cast = window.open(url,"Cast", "dependent=0, resizable=1, menubar=0, scrollbars=1, status=0, width=400, height=400");
	cast.focus();
}

//das Synopsis Window öffnen
function openSynopsis(id, uilang, contentlang){
	var url = "synopsis.php?id=" + id + "&uilang=" + uilang + "&lang=" + contentlang;
	var synopsis = window.open(url,"Synopsis", "dependent=0, resizable=1, menubar=0, scrollbars=1, status=0, width=500, height=500");
	synopsis.focus();
}

//das Libretto Window öffnen
function openLibretto(id, uilang, contentlang){
	var url = "libretto.php?id=" + id + "&uilang=" + uilang + "&lang=" + contentlang;
	var libretto = window.open(url,"Libretto", "dependent=0, resizable=1, menubar=0, scrollbars=1, status=0, width=500, height=500");
	libretto.focus();
}

//das Highlight Window öffnen
function openHighlight(operId, id, uilang){
	var url = "highlight_list.php?id=" + id + "&oper_id=" + operId + "&uilang=" + uilang;
	var highlight = window.open(url,"Highlight", "dependent=0, resizable=1, menubar=0, scrollbars=1, status=0, width=750, height=620");
	highlight.focus();
}

//das About Window öffnen
function openAbout(uilang){
	var url = "about.php?uilang=" + uilang;
	var about = window.open(url,"About", "dependent=0, resizable=1, menubar=0, scrollbars=0, status=0, width=350, height=240");
	about.focus();
}

//das subscription window öffnen
function openSubscription(){
	var uilang = getUILang();
	if (uilang == "") {
		uilang = "de";
	}
	var url = "subscription.php?uilang=" + uilang;
	window.location.href = url;
}

//das Opera Guide standard window öffnen
function openGuide(){
	openOverview("A");
}

//die Übersicht mit dem entsprechenden Anfangsbuchstabe darastellen.
function openOverview(first_letter) {
	var uilang = getUILang();
	if (uilang == "") {
		uilang = "de";
	}
	var url = "../../opern_komponisten.php?uilang=" + uilang + "&first-letter=" + first_letter;
	window.location.href = url;
}

//die uilanguage auslesen
function getUILang(){
	var params = window.location.search;
	var uilang = params.substr(params.indexOf("uilang=") + 7, 2);
	return uilang;
}

//die Sprache wechseln
function switchLanguage() {
	var uilang = getUILang();
	if (uilang == "de") {
		var url = window.location.href;
		url = url.replace(/uilang=de/,"uilang=en");
	} else if (uilang == "en") {
		var url = window.location.href;
		url = url.replace(/uilang=en/,"uilang=de");
	} else {
		var url = window.location.href;
		url = url + "index.php?uilang=en";
	}
	window.location.href = url;
}

//herausfinnden ob dies eine subscription Seite ist
function isSubscription(){
	return (window.location.href.indexOf("subscription.php") != -1);
}

//die Funktionen für die Suche
function search() {
	var query = window.document.forms[0].query.value;
	var lang = window.document.forms[0].uilang.value;
	var url = "search.php?uilang=" + lang + "&query=" + query;
	window.location.href = url;
}



//das aktive window setzen
//ugly hack weil alles im gleichen header jsp ist
function initGlobals(){
	var uilang = getUILang();
	
	if (uilang == "en") {
		of_img_src = "pics/opernfuehrer_button_en.gif";
		of_img_over_src = "pics/opernfuehrer_button_en_over.gif";
		oo_img_src = "pics/operonline_button_en.gif";
		oo_img_over_src = "pics/operonline_button_en_over.gif";
	} else {
		of_img_src = "pics/opernfuehrer_button.gif";
		of_img_over_src = "pics/opernfuehrer_button_over.gif";
		oo_img_src = "pics/operonline_button.gif";
		oo_img_over_src = "pics/operonline_button_over.gif";
	}
	
	if (isSubscription()){
		window.document.opernfuehrer.src = of_img_src;
		window.document.operonline.src = oo_img_over_src;
	} else {
		window.document.opernfuehrer.src = of_img_over_src;
		window.document.operonline.src = oo_img_src;
	}
		
	//preload the images
	MM_preloadImages(of_img_src, of_img_over_src, oo_img_src, oo_img_over_src);
	
}

//die images im titel der Seite swappen
function swapTitleOF(){
	if (isSubscription()) {
		MM_swapImage("opernfuehrer", "", of_img_over_src, "operonline", "", oo_img_src, 1);
	} 
}

function swapTitleOO(){
	if (!isSubscription()) {
		MM_swapImage("opernfuehrer", "", of_img_src, "operonline", "", oo_img_over_src, 1);
	}
}

//von Macromedia DreamWeaver
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];}}
}

//von Macromedia DreamWeaver
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;
}

//von Macromedia DreamWeaver
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;
}

//von Macromedia DreamWeaver
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];}
}

//von Macromedia DreamWeaver
function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}


// ******** Validierungen für den EditMode ********
function validateKomponist() {
	var name = window.document.forms[0].name.value;
	var vorname = window.document.forms[0].vorname.value;
	if (name == "") {
		alert("Bitte Name angeben!")
		return false;
	} else if (vorname == "") {
		alert("Bitte Vorname angeben!");
		return false;
	} 
	return true;
}

function validateOper() {
	var title_de = window.document.forms[0].title_de.value;
	var title_en = window.document.forms[0].title_en.value;
	var komponistId = window.document.forms[0].komponist_id.value;
	
	if (komponistId == "0") {
		alert("Bitte den Komponisten auswählen!");
		return false;
	} else if (title_de == "") {
		alert("Bitte den deutschen Titel angeben!");
		return false;
	} else if (title_en == "") {
		alert("Bitte den englischen Titel angeben!");
		return false;
	}
	return true;
}

function validateHighlight() {

	var title_de = window.document.forms[0].title_de.value;
	var title_en = window.document.forms[0].title_en.value;
	var position = window.document.forms[0].position.value;
	
	if (title_de == "") {
		alert("Bitte den deutschen Titel angeben!");
		return false;
	} else if (title_en == "") {
		alert("Bitte den englischen Titel angeben!");
		return false;
	} else if (position == "") {
		alert("Bitte die Position angeben!");
		return false;
	}
	return true;
}

function validateLink() {
	var url = window.document.forms[0].url.value;
	var index = window.document.forms[0].index.value;
	var title_de = window.document.forms[0].title_de.value;
	var title_en = window.document.forms[0].title_en.value;
	if (url == "") {
		alert("Bitte URL angeben!")
		return false;
	} else if (index == "") {
		alert("Bitte Index angeben!");
		return false;
	} else if (title_de == "") {
		alert("Bitte deutschen Titel angeben!");
		return false;
	} else if (title_en == "") {
		alert("Bitte englischen Titel angeben!");
		return false;
	}
	return true;
}

function validatePerformance() {
	var ort = window.document.forms[0].ort.value;
	var besetzung = window.document.forms[0].besetzung.value;
	if (ort == "") {
		alert("Bitte Ort angeben!")
		return false;
	} else if (besetzung == "") {
		alert("Bitte Besetzung angeben!");
		return false;
	}
	return true;
}

function validateReview() {
	var medium = window.document.forms[0].medium.value;
	var autor = window.document.forms[0].autor.value;
	var title = window.document.forms[0].title.value;
	if (medium == "") {
		alert("Bitte Medium angeben!")
		return false;
	} else if (autor == "") {
		alert("Bitte Autor angeben!");
		return false;
	} else if (title == "") {
		alert("Bitte Titel angeben!");
		return false;
	}
	return true;
}

function validateSinger() {
    //TODO: implement
    return true;
}

function validateRecord() {
    //TODO: implement
    return true;
}

function isValidDate(){
    var year = Number(window.document.forms[0].date_year.value);
    var month = Number(window.document.forms[0].date_month.value);
    var day = Number(window.document.forms[0].date_day.value);
    
    var dt = new Date(year + "/" + month + "/" + day);
    
    if(dt.getDate()!= day){
        return(false);
        }
    else if(dt.getMonth()!= month - 1){
    //this is for the purpose JavaScript starts the month from 0
        return(false);
        }
    else if(dt.getFullYear()!= year){
        return(false);
        }	        
    return(true);
 }


function editKomponist(id) {
	var url = "./edit_komponist.php?id=" + id;
	var edit_komp = window.open(url, "Komponist", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=600, height=500");
	edit_komp.focus();
}

function editOper(id) {
	var url = "./edit_oper.php?id=" + id;
	var edit_oper = window.open(url, "Oper", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=650, height=700");
	edit_oper.focus();
}

function editHighlight(operId, id) {
	var url = "./edit_highlight.php?id=" + id + "&oper_id=" + operId;
	var edit_highlight = window.open(url, "Highlight", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=750, height=450");
	edit_highlight.focus();
}

function editLink(id) {
	var url = "./edit_link.php?id=" + id;
	var edit_link = window.open(url, "Link", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=600, height=450");
	edit_link.focus();
}

function editPerformance(id) {
	var url = "./edit_performance.php?id=" + id;
	var edit_performance = window.open(url, "Performance", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=600, height=500");
	edit_performance.focus();
}

function editReview(performance_id, id) {
	var url = "./edit_review.php?id=" + id + "&performance_id=" + performance_id;
	var edit_review = window.open(url, "Review", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=500, height=450");
	edit_review.focus();
}

function editSinger(id) {
    var url = "./edit_singer.php?id=" + id;
    var edit_singer = window.open(url, "Singer", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=600, height=700");
    edit_singer.focus();
}

function editRecord(singer_id, id) {
    var url = "./edit_record.php?id=" + id + "&singer_id=" + singer_id;
    var edit_record = window.open(url, "Record", "dependent=0, resizable=0, menubar=0, scrollbars=1, status=0, width=700, height=450");
    edit_record.focus();
}