/* -- Quicktime detection -- */

var quicktime = new Object();
quicktime.installed=false;
quicktime.version='0.0';
quicktime.version1='';

if (navigator.plugins && navigator.plugins.length) {
	for (i=0; i<navigator.plugins.length; i++) {
		if (navigator.plugins[i].name.indexOf('QuickTime') >= 0) {
			quicktime.installed = true;
			var splitter ='QuickTime Plug-in ';
			quicktime.version = navigator.plugins[i].name.substr( splitter.length );
			break;
		}
	}
}else if (window.ActiveXObject) {
	try	{
		QTime = new ActiveXObject('QuickTimeCheckObject.QuickTimeCheck.1');
		if (QTime) {
			quicktime.installed = QTime.IsQuickTimeAvailable(0);
			quicktime.version = parseInt(QTime.QuickTimeVersion.toString(16).substring(0,3))/100;
		}
	}catch(e) {}
}
quicktime.ver4 = (quicktime.installed && parseInt(quicktime.version) >= 4);
quicktime.ver6 = (quicktime.installed && parseInt(quicktime.version) >= 6);
quicktime.ver8 = (quicktime.installed && parseInt(quicktime.version) >= 8);
quicktime.ver9 = (quicktime.installed && parseInt(quicktime.version) >= 9);

/* -- Diverse Functions -- */

var win = null;
function openWin( url, name, xsize, ysize ) {
	if (win!=null) win.close();
	var features = '';
	if (arguments.length>2) features = 'resizable=no,hotkeys=no,menubar=no,locationbar=no,status=yes,width='+xsize+',height='+ysize;
	win = window.open(url ,name , features);
	win.focus();
}


function getWinWidth() {
	if (window.innerWidth) return window.innerWidth;
	else if (document.body && document.body.offsetWidth) return document.body.offsetWidth;
	else return 1024;
}

function myOnResize() {
	var winWidth = getWinWidth();
}

/* --- Hervorhebungen --- */

function showElem( id ) {
	var el = document.getElementById(id);
	if (el)	el.style.display ='block';	
}
function hideElem( id ) {
	var el = document.getElementById(id);
	if (el)	el.style.display ='none';	
}

function selTeaserBox(idNr) {
	var el = document.getElementById('teaser'+idNr);
	if (el.className.indexOf('rollover')<0)
		el.className+=' rollover';
}
function unselTeaserBox(idNr) {
	var el = document.getElementById('teaser'+idNr);
	if (el.className.indexOf('rollover')>=0)
		el.className = el.className.substring(0,el.className.indexOf('rollover')-1);
}

function selNewsTeaser(idNr) {
	var el = document.getElementById('newsteaser'+idNr);
	if (el.className.indexOf('selected')<0 && el.className.indexOf('rollover')<0)
		el.className+=' rollover';
}
function unselNewsTeaser(idNr) {
	var el = document.getElementById('newsteaser'+idNr);
	if (el.className.indexOf('rollover')>=0)
		el.className = el.className.substring(0,el.className.indexOf('rollover')-1);
}

function selArtistTeaser(idNr) {
	var el = document.getElementById('artistteaser'+idNr);
	if (el.className!='artist_teaser selected')
		el.className='artist_teaser rollover';
}
function unselArtistTeaser(idNr) {
	var el = document.getElementById('artistteaser'+idNr);
	if (el.className=='artist_teaser rollover')
		el.className='artist_teaser';
}
function showPreviewPic( id, id_max) {
	if (id<0) id=0;
	if (id>=id_max) id=id_max-1;
	for (i=0; i<id_max; i++) {
		var el = document.getElementById('pic'+i);
		if (i==id) el.style.display='block';
		else  el.style.display='none';
	}
	shownPic = id;
	// Navi
	for (i=0; i<id_max; i++) {
		var el = document.getElementById('pagenav'+i);
		if (!el) continue;
		if (i==id) el.className='selected';
		else  el.className='';
	}
	
}
function showSubMenu( id ) {
	for(i=0; i<submenu_ids.length; i++) {
		if (submenu_ids[i]!=id) {
			var el = document.getElementById('submenu'+submenu_ids[i]);
			if (el.className.indexOf('selected')>=0) el.className = el.className.substring(0,el.className.indexOf('selected')-1);
			$('scrollbox'+submenu_ids[i]).style.display='none';
		}else {
			var el = document.getElementById('submenu'+submenu_ids[i]);
			if (el.className.indexOf('selected')<0)	el.className+=' selected';
			document.getElementById('scrollbox'+id).style.display='block';
		}
	}
}

/* --- IFrame Kontrolle --- */
function checkIFrame( framename, home, page, opt_framename, opt_page ) {
	if (this.name!=framename) {
		var linkvars = framename+"="+page;
		if (arguments.length>3) linkvars += "&"+opt_framename+"="+opt_page;
		top.location.href = home+"?"+linkvars;
	}
	//alert(top.document.getElementById(opt_framename).src+" !=? "+opt_page)
}
function loadInFrame( framename, page ) {
	if (page=="") page = "/live/empty.php";
	parent[framename].location.href = page;
}

// Zeigt Newseintrag (wird auch fuer Artists, Events verwendet)
function showNewsEntry( id, id_max, page, teaser_basename, teaserClass ) {
	id = Number(id);
	id_max = Number(id_max);
	loadInFrame('subcontent_iframe',page);
	for (n=0; n<=id_max; n++) {
		var el = $(teaser_basename+n);
		if (!el) continue;
		isFirst = (el.className.indexOf('first')>=0);
		isLast = (el.className.indexOf('last')>=0);
		if (n==id) el.className=teaserClass+" selected";
		else el.className=teaserClass;
		if (isFirst) el.className+=" first";
		if (isLast) el.className+=" last";
	}
}
// Zeigt neue PageNav-Seite an, zugleich wählt es vorgegebenen Teasereintrag auf der Seite und laedt im Subcontent-IFrame die Inhaltsseite zum Teasereintrag
// block_basename ... Namensstamm fuer PageNav-Seite
// nav_basename ... Namensstamm fuer PageNav-Symbol (Zahl)
// blockID ... id des anzuzeigenden pageNav-Blocks und -Symbols, blockID_max ... Nummer an fortlaufenden Ids aller pageNav-Bloecke
// Variable selPageTeaser wird vorrausgesetzt
// showPageInSubcon ... Boolean, wenn true, dann auch die entsprechenden Subcontent zum aktuellen pageNav-Block anzeigen; setzte Array pages[sortiert nach blockIDs] vorraus!
// Array pageTeaserIds[sortiert nach Teaser_Id] vorraus gesetzt:
// teaser_basename ... Namensstamm von Teasereintraegen in den PageNav-Bloecken
// selectedTeaser_Id ... optional; alternativ zur BlockID wird die ID des gewaehlten Teasers angegeben, BlockID wird daraus abgeleitet 
// numTeaser ... Anzahl an Teasereintraegen
// teaserClass ... Stylesheetklasse fuer selektierten Teasereintrag
// unselTeaserClass ... Stylesheetklasse fuer unselektierten Teasereintrag
function pageNavShowHide( block_basename, nav_basename, blockID, blockID_max, showPageInSubcon, teaser_basename, selectedTeaser_Id, numTeaser, teaserClass, unselTeaserClass ) {
	// Teaserelement selektieren und PageNav-Block raussuchen, falls TeaserId uebergeben
	if (selectedTeaser_Id!==false) {
		blockID = 0;
		for (n=0; n<pageTeaserIds.length; n++) {
			if (selectedTeaser_Id>=pageTeaserIds[n]) blockID = n;
			else break;
		}
		for (teaserID=0; teaserID<numTeaser; teaserID++) {
			var el = $(teaser_basename+teaserID);
			if (!el) continue;
			isFirst = (el.className.indexOf('first')>=0);
			isLast = (el.className.indexOf('last')>=0);
			if (teaserID == selectedTeaser_Id) el.className = teaserClass;
			else el.className = unselTeaserClass;
			if (isFirst) el.className+=" first";
			if (isLast) el.className+=" last";
		}
	}
	// PageNav-Block selektieren
	for (n=0; n<blockID_max; n++) {
		var el = $(nav_basename+n);
		if (!el) continue;
		if (n==blockID) el.className="selected";
		else  el.className="";
		var el = $(block_basename+n);
		if (!el) continue;
		if (n==blockID) el.style.display="block";
		else el.style.display="none";
		selPageTeaser = blockID;
	}
	// Subcontent laden und Teaserelement selektieren (fuer den Fall, dass keine TeaserID uebergeben wurde/werden konnte)
	if (showPageInSubcon && pages[blockID]) {
		loadInFrame('subcontent_iframe',pages[blockID]);
		if (arguments.length>4) {
			for (teaserID=0; teaserID<numTeaser; teaserID++) {
				var el = $(teaser_basename+teaserID);
				if (!el) continue;
				isFirst = (el.className.indexOf('first')>=0);
				isLast = (el.className.indexOf('last')>=0);
				if (teaserID == pageTeaserIds[blockID]) el.className = teaserClass;
				else el.className = unselTeaserClass;
				if (isFirst) el.className+=" first";
				if (isLast) el.className+=" last";
			}
		}	
	}
	
}
// Schaut ob der richtige Teaser fuer das jeweilige Ziel (Artist/Newseintrag..) selektiert ist
// Setzt Array contentArr vorraus, in dem alle Ziele nach Teaser-Id sortiert vorliegen
// Die anderen Parameter analog zu pageNavShowHide()
function checkSelection( teaserelem, block_basename, nav_basename, blockID_max, showPageInSubcon, teaser_basename, numTeaser, teaserClass, unselTeaserClass ) {
	var notfound=true;
	for (i=0; i<contentArr.length; i++) {
	 	if (teaserelem==contentArr[i]) {
	 		pageNavShowHide( block_basename, nav_basename, false , blockID_max, showPageInSubcon, teaser_basename, i ,numTeaser, teaserClass, unselTeaserClass );
	 		notfound=false;
	 		break;
		}
	}
	if (notfound) {
		pageNavShowHide( block_basename, nav_basename, false , blockID_max, showPageInSubcon, teaser_basename, -1 ,numTeaser, teaserClass, unselTeaserClass );
	} 
}

/* -- Seite anzeigen  -- */

var recent_movie_id=null;
function showProject(id, movie_id, qt_src, qt_width, qt_height, yt_src, yt_width, yt_height ) {
	proj_shown = id;
	document.getElementById(id).style.display = "block";
	myOnResize();
	document.getElementById("head_mfo").onclick = hideProject;
	document.getElementById("blog").display = "none";
	if (arguments.length>1) {
		recent_movie_id = movie_id;
		if (quicktime.ver6) showQuicktime( movie_id, qt_src, qt_width, qt_height );
		else if (arguments.length>5) showYouTube(movie_id, yt_src, yt_width, yt_height);
	}
	// history
	unFocus.History.addHistory(1);
}
function hideProject() {
	if (proj_shown!=null) document.getElementById(proj_shown).style.display = "none";
	proj_shown = null;
	myOnResize();
	document.getElementById("blog").display = "block";
	stopMovie( recent_movie_id );
}

/* -- History Manager -- */

historyListener = function(historyHash) {
	if (historyHash==0) hideProject();
}
unFocus.History.addEventListener('historyChange', historyListener);

/* -- Filme anzeigen (Quicktime, YouTube, ..)  -- */

function showQuicktime(id, src, width, height) {
	var el=document.getElementById(id)
	el.style.height = height+"px";
	el.innerHTML='<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="http://www.apple.com/qtactivex/qtplugin.cab" width="'+width+'" height="'+height+'" SCALE="toFit">'
				+'  <param name="src" value="'+src+'" />'
				+'  <param name="controller" value="true" />'
				+'  <param name="scale" value="toFit" />'
				+'  <object type="video/quicktime" data="'+src+'" width="'+width+'" height="'+height+'" class="mov" scale="toFit">'
				+'    <param name="scale" value="toFit" />'
				+'  </object>'
				+'</object>' ;
}
function showYouTube(id, src, width, height) {
	var el=document.getElementById(id);
	el.style.width = width+"px";
	el.style.height = height+"px";
	el.innerHTML= '<div class="movie_info">'
				+ ((lang=='de')? ' Das Quicktime Plug-In ist nicht installiert ... um den Film zu sehen bitte dem YouTube Link auf der rechten Seite folgen!' :
								 ' The Quicktime plug-in is not installed ... follow the YouTube link on the right to watch the film! <br/> ' )
				+ '</div>';
}
function stopMovie(id) {
	if (id==null) return;
	var el=document.getElementById(id);
	el.innerHTML='';
}

/* -- Post-Loading Functions -- */

function registerPostImg(src, id) {
	if (typeof(postLoad)=="undefined") postLoad = new Array(0);
	var i = postLoad.length;
	postLoad[i] = new Array( src , id );
}

function startPostLoading() {
	window.setTimeout("doPostLoading()", 1000);	
}

function doPostLoading() {
	if (postLoad.length==0) return false;
	for (i in postLoad) {
		var el = document.getElementById(postLoad[i][1]);
		el.innerHTML += '<img src='+postLoad[i][0]+'>';
	}
}

/* -- Radio -- */
// setzt Array trackIDs vorraus
function placeTracks( holderID, tracksID ) {
    var height=0;
    for (i=0; i<trackIDs.length; i++) {
    	var track = document.getElementById(trackIDs[i]);
    	height += track.clientHeight+6;
	}
    var tracks = document.getElementById(tracksID);
	//var holder = document.getElementById(holderID);
	var margins = 185 - height;
	margins = Math.floor( margins/2 );
	tracks.style.marginTop = margins + "px";
}

function startTrack( url , id/*, name*/ ) {
	if (top.subcontent_iframe.runningTrackNr!=id) {
   		var flashMovie = getFlashObject("mhradio");
   		if (flashMovie) {
   			flashMovie.SetVariable("/:startTrack", id );
   			flashMovie.SetVariable("/:startTrack_url", url );
   			//flashMovie.SetVariable("/:startTrack_name", name );
   		}
   		if (top.subcontent_iframe.runningTrackNr!='') {
			var el = document.getElementById('track'+top.subcontent_iframe.runningTrackNr);
   			el.className='track';
   		}
   		top.subcontent_iframe.runningTrackNr = id;
   		var el = document.getElementById('track'+id);
   		el.className='track selected';
	}else{
		stopTrack( id );
	}
}

function stopTrack( id ) {
	var flashMovie = getFlashObject("mhradio");
   	if (flashMovie) flashMovie.SetVariable("/:stopTrack", id );
   	var el = document.getElementById('track'+id);
   	el.className='track';
   	top.subcontent_iframe.runningTrackNr='';
}

function stoppedRunningTrack() {
	if (top.subcontent_iframe.runningTrackNr!='') {
		var el = top.subcontent_iframe.document.getElementById('track'+top.subcontent_iframe.runningTrackNr);
		if (el) el.className='track';
   	}
	top.subcontent_iframe.runningTrackNr='';
}

function tellRadioToWait( forThis ) {
	var flashMovie = getFlashObject("mhradio");
   	if (flashMovie) flashMovie.SetVariable("/:pauseLoading", forThis );
}

function tellRadioToGoOn( forThis ) {
	var flashMovie = getFlashObject("mhradio");
   	if (flashMovie) flashMovie.SetVariable("/:continueLoading", forThis );
}

// Liefert das Flash-Objekt zurueck
function getFlashObject( movieName ) {
	if ( top.window.document[movieName]) return top.window.document[movieName];
	if ( navigator.userAgent.indexOf("Windows")!=-1 && navigator.appVersion.indexOf("MSIE")==-1) {
		if ( top.document.embeds && top.document.embeds[movieName]) return top.document.embeds[movieName]; 
		else return false;
	}else{
		return testElementbyId(movieName);
	}
	return false;
}


// Testet, ob ein Element mit der elementID existiert, Objektreferenz wird zurueckgeliefert oder false
function testElementById( elementID ) {
	try {
		dg=document.getElementById( elementID );
		if (dg) {
			throw dg;
		}else{
			throw null;
		}
	}catch (err) {
		return err;
	}
}