// general var inits
	var i, j, s, simpleMime;
	var menus = [{ file:'intro.html', text:'General' }, { file:'modules.html', text:'Modules' }, { file:'performances.html', text:'Performances' }, { file:'workshops.html', text:'Workshops' }, { file:'output.html', text:'Output' }, { file:'personnel.html', text:'Personnel' }, { file:'imprint.html', text:'Imprint' }];
	var objectCount = 0;

	// split path part of URL and 'search' part
	var locFull = location.href;
	var locPath, locParams, locFile;

	i = locFull.indexOf("?");
	if( i >= 0 ) {
		locPath		= locFull.substring( 0, i );
		locParams	= locFull.substring( i + 1 );
	} else {
		locPath		= locFull;
		locParams	= "";
	}
	i = locPath.lastIndexOf("/")+1;
	j = locPath.indexOf(".htm",i);
	if( j > i ) {
		locFile = locPath.substring( i, j );
	} else {
		locFile = locPath;
	}
		
	// retrieve parameters and put them into an array of objects
	var paramStrings	= locParams.split("&");
	var paramArray		= new Array();
		
	for( i = 0, j = 0; i < paramStrings.length; i++ ) {
		s = paramStrings[i].split("=");
		if( s.length == 2 ) {
			paramArray[j++]	= { name: s[0], value: s[1] };
//			alert("name:"+s[0]+",value:"+s[1]);
		}
	}
	for( i = 0, j = paramArray.length; i < j; i++ ) {
		paramArray[paramArray[i].name]	= paramArray[i];
	}

	s			= navigator.userAgent;
	// opera 6 doesn't understand video/mp4 and audio/mp3 ...
	simpleMime 	= s.indexOf('Opera') != -1;

	// split path part of URL and 'search' part
	var locFull = location.href;
	var locPath, locParams, locFile;

	i = locFull.indexOf("?");
	if( i >= 0 ) {
		locPath		= locFull.substring( 0, i );
		locParams	= locFull.substring( i + 1 );
	} else {
		locPath		= locFull;
		locParams	= "";
	}
	i = locPath.lastIndexOf("/");
	locFile = locPath.substring( i+1 );
		
	function showElement( id, state )
	{
		var element;
	
		element = document.getElementById( id );
		if( element ) {
			element.style.display = (state ? "block" : "none" );
		}
	}

	// create a table for page navigation
	function writeNavBar()
	{
		var htmlNav = '<DIV ID="left"><IMG SRC="../images/left.jpg" WIDTH=196 HEIGHT=44 ALT=""></DIV><DIV ID="menu"><UL>';

		var i;
		
		for( i = 0; i < menus.length; i++ ) {
			if( locFile.indexOf( menus[i].file ) == -1 ) {
				htmlNav += '<LI><A HREF="'+menus[i].file+'">'+menus[i].text+'</A></LI>';
			} else {
				htmlNav += '<LI>'+menus[i].text+'</LI>';
			}
		}

		htmlNav += '</UL></DIV>';

		document.write( htmlNav );
	}

	function checkMime( exactMime )
	{
		var i;
	
		if( simpleMime ) {
			i = exactMime.indexOf( "mp3" );
			if( i == - 1 ) {
				i = exactMime.indexOf( "mp4" );
			}
			if( i != -1 ) {
				return( exactMime.substring( 0, i ) + "mpeg" );
			}
		}
		return exactMime;
	}

	function createURL( name, newParams )
	{
		var locFull = name;
		var delim	= "?";
		var i;
		
		for( i = 0; i < paramArray.length; i++ ) {
			locFull += delim + paramArray[i].name + "=" + paramArray[i].value;
			delim	 = "&";
		}
		if( newParams ) {
			for( i = 0; i < newParams.length; i++ ) {
				locFull += delim + newParams[i].name + "=" + newParams[i].value;
				delim	 = "&";
			}
		}
		return locFull;
	}
		
	function load( name )
	{
		closeContextWindows();
		location.href = createURL( name );
	}
	
	// reload page to adapt to new size settings etc.
	// browser history is not affected
	function reload()
	{
		closeContextWindows();
		location.replace( createURL( locPath ));
	}

	function closeContextWindows()
	{
	}

	function setTitle( name )
	{
		document.title = name;
	}

	// read a parameter like language, image size etc.
	function getParam( name, defValue )
	{
		var obj = paramArray[ name ];
		if( obj && (typeof obj.value != "undefined") ) {
			return obj.value;
		} else {
			return defValue;
		}
	}

	// likewise set an parameter		
	function setParam( name, value )
	{
		var obj = paramArray[ name ];
		if( obj ) {
			obj.value = value;
		} else {
			obj = { name: name, value: value };
			paramArray[paramArray.length] = obj;
			paramArray[name] = paramArray[paramArray.length-1];
		}
	}

	function writeAudioObject( humanName, fileName, mimeType )
	{
		var htmlCode = '<DIV CLASS="audioobject" STYLE="top:'+(objectCount*36+308)+'px;">';
		htmlCode += '<SPAN CLASS="objectdescr">'+humanName+'</SPAN>';

		mimeType  = checkMime( mimeType );
		htmlCode += '<OBJECT CLASS="audioobject" STYLE="top:'+(objectCount*36+324)+'px;" CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" WIDTH="160" HEIGHT="16" CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab"><PARAM name="SRC" VALUE="'+fileName+'"><PARAM NAME="AUTOPLAY" VALUE="false"><PARAM NAME="CONTROLLER" VALUE="true"><PARAM NAME="SCALE" VALUE="tofit"><EMBED SRC="'+fileName+'" TYPE="'+mimeType+'" WIDTH="160" HEIGHT="16" SCALE="tofit" PLUGINSPAGE="http://www.apple.com/quicktime/download/" AUTOPLAY="false" CONTROLLER="true"></OBJECT>';

		htmlCode += '</DIV>';
		document.write( htmlCode );
		
		objectCount++;
	}

	function showMovie( file, width, height, addParams )
	{
		var newParams = [{name:"mov",value:file}];
		var i;
		if( typeof addParams != "undefined" ) {
			for( i = 0; i < addParams.length; i++ ) {
				newParams[newParams.length] = addParams[i];
			}
		}
		var movWindow = window.open( createURL("viewmov.html",newParams), "movWindow", "toolbar=no,resizable=yes,scrollbars=no,directories=no,status=no,width="+width+",height="+(height+16) );
	} 

	function writeQuickTimeObject( humanName, fileName, mimeType, width, height, params )
	{
		var i;
		var htmlCode = '<DIV CLASS="videoobject">';
		
		htmlCode += '<SPAN CLASS="objectdescr">'+humanName+'</SPAN>';

		mimeType  = checkMime( mimeType );
		htmlCode += '<OBJECT CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" WIDTH="'+width+'" HEIGHT="'+height+'" CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab"><PARAM NAME="SRC" VALUE="'+fileName+'">';

		for( i = 0; i < params.length; i++ ) {
			htmlCode += '<PARAM NAME="'+params[i].key+'" VALUE="'+params[i].value+'">';
		}

		htmlCode += '<EMBED SRC="'+fileName+'" TYPE="'+mimeType+'" WIDTH="'+width+'" HEIGHT="'+height+'" ';

		for( i = 0; i < params.length; i++ ) {
			htmlCode += params[i].key+'="'+params[i].value+'" ';
		}

		htmlCode += 'PLUGINSPAGE="http://www.apple.com/quicktime/download/"></OBJECT>';
		i		  = fileName.lastIndexOf( '.' );
		htmlCode += '<DIV CLASS="videoctrl" STYLE="padding-left:'+(width-112)+'px"><A HREF="javascript:showMovie(\''+fileName+'\',600,600)"><IMG SRC="../images/fullscreen.gif" ALT="fullscreen"></A><A HREF="'+fileName.substring( 0, i )+'.qtl"><IMG SRC="../images/qtplayer.gif" ALT="qt player"></A></DIV>';

		htmlCode += '</DIV>';
		document.write( htmlCode );
	}