<!--
var selectedIdx=-99;
var replaceArray=new Array("nurrechts","alle","alle","alle","alle","nurlinks");
var menuEntries=new Array("programm","vortraege","anmeldung","anfahrt","hotels","information");

//vorladen in index.js
if(document.images)
{
var programmon = new Image();
programmon.src = "images/topnav/programmon.gif";
var programmoff = new Image();
programmoff.src = "images/topnav/programmoff.gif";

var vortraegeon = new Image();
vortraegeon.src = "images/topnav/vortraegeon.gif";
var vortraegeoff = new Image();
vortraegeoff.src = "images/topnav/vortraegeoff.gif";

var anmeldungon = new Image();
anmeldungon.src = "images/topnav/anmeldungon.gif";
var anmeldungoff = new Image();
anmeldungoff.src = "images/topnav/anmeldungoff.gif";

var anfahrton = new Image();
anfahrton.src = "images/topnav/anfahrton.gif";
var anfahrtoff = new Image();
anfahrtoff.src = "images/topnav/anfahrtoff.gif";

var hotelson = new Image();
hotelson.src = "images/topnav/hotelson.gif";
var hotelsoff = new Image();
hotelsoff.src = "images/topnav/hotelsoff.gif";

var informationon = new Image();
informationon.src = "images/topnav/informationon.gif";
var informationoff = new Image();
informationoff.src = "images/topnav/informationoff.gif";

var navabstand0on = new Image();
navabstand0on.src = "images/topnav/navabstand1on.gif";
var navabstand0off = new Image();
navabstand0off.src = "images/topnav/navabstand1off.gif";

var navabstand1linkson = new Image();
navabstand1linkson.src = "images/topnav/navabstand2linkson.gif";
var navabstand1rechtson = new Image();
navabstand1rechtson.src = "images/topnav/navabstand2rechtson.gif";
var navabstand1off = new Image();
navabstand1off.src = "images/topnav/navabstand2off.gif";
var navabstand1on = new Image();
navabstand1on.src = "images/topnav/navabstand2on.gif";

var navabstand2linkson = new Image();
navabstand2linkson.src = "images/topnav/navabstand2linkson.gif";
var navabstand2rechtson = new Image();
navabstand2rechtson.src = "images/topnav/navabstand2rechtson.gif";
var navabstand2off = new Image();
navabstand2off.src = "images/topnav/navabstand2off.gif";
var navabstand2on = new Image();
navabstand2on.src = "images/topnav/navabstand2on.gif";

var navabstand3linkson = new Image();
navabstand3linkson.src = "images/topnav/navabstand2linkson.gif";
var navabstand3rechtson = new Image();
navabstand3rechtson.src = "images/topnav/navabstand2rechtson.gif";
var navabstand3off = new Image();
navabstand3off.src = "images/topnav/navabstand2off.gif";
var navabstand3on = new Image();
navabstand3on.src = "images/topnav/navabstand2on.gif";

var navabstand4linkson = new Image();
navabstand4linkson.src = "images/topnav/navabstand2linkson.gif";
var navabstand4rechtson = new Image();
navabstand4rechtson.src = "images/topnav/navabstand2rechtson.gif";
var navabstand4off = new Image();
navabstand4off.src = "images/topnav/navabstand2off.gif";
var navabstand4on = new Image();
navabstand4on.src = "images/topnav/navabstand2on.gif";

var navabstand5linkson = new Image();
navabstand5linkson.src = "images/topnav/navabstand2linkson.gif";
var navabstand5rechtson = new Image();
navabstand5rechtson.src = "images/topnav/navabstand2rechtson.gif";
var navabstand5off = new Image();
navabstand5off.src = "images/topnav/navabstand2off.gif";
var navabstand5on = new Image();
navabstand5on.src = "images/topnav/navabstand2on.gif";

var navabstand6on = new Image();
navabstand6on.src = "images/topnav/navabstand1on.gif";
var navabstand6off = new Image();
navabstand6off.src = "images/topnav/navabstand1off.gif";
}

function hooverOn(menuIdx)
{
	rightImg=menuIdx+1;
	//ist mauszeiger auf gerade ausgewähltem menu?
	if (selectedIdx!=menuIdx){
		//wenn nein dann fallbestimmung (benachbarter menüeintrag ja/nein)
		//mauszeiger 1 rechts vom gerade ausgewählten menu
		if (selectedIdx==menuIdx-1) {
			//fallunterscheidung welche bilder ersetzt werden müssen
			switch(replaceArray[menuIdx])
			{
				case "alle": 	
								//menuIdx verwenden um filenamen für menueintrag aus menuEntries array zu lesen
								setImg(menuEntries[menuIdx],"on");
								setImg("navabstand"+menuIdx,"on");
								setImg("navabstand"+rightImg,"linkson");
							  	break;		

				case "nurlinks": 	setImg(menuEntries[menuIdx],"on");
									setImg("navabstand"+menuIdx,"on");
									setImg("navabstand"+rightImg,"on");
							  		break;										  
			}
		} else if (selectedIdx==menuIdx+1){ 		//mauszeiger 1 links vom gerade ausgewählten menu
			//fallunterscheidung welche bilder ersetzt werden müssen
			switch(replaceArray[menuIdx])
			{
				case "alle": setImg(menuEntries[menuIdx],"on");
								setImg("navabstand"+menuIdx,"rechtson");
								setImg("navabstand"+rightImg,"on");
							  	break;

				case "nurrechts": 	setImg(menuEntries[menuIdx],"on");
									setImg("navabstand"+menuIdx,"on");
									setImg("navabstand"+rightImg,"on");
							  		break;					  
			}
		} else { 		//die restlichen fälle (die nicht benachbarten einträge z.B. 4. eintrag ausgewählt maus 
							//steht auf dem 1. eintrag)
			//fallunterscheidung welche bilder ersetzt werden müssen
			switch(replaceArray[menuIdx])
			{	
				case "alle": setImg(menuEntries[menuIdx],"on");
								setImg("navabstand"+menuIdx,"rechtson");
								setImg("navabstand"+rightImg,"linkson");
							  	break;
					  
				case "nurlinks": 	setImg(menuEntries[menuIdx],"on");
									setImg("navabstand"+menuIdx,"rechtson");
									setImg("navabstand"+rightImg,"on");
							  		break;

				case "nurrechts": 	setImg(menuEntries[menuIdx],"on");
									setImg("navabstand"+menuIdx,"on");
									setImg("navabstand"+rightImg,"linkson");
							  		break;
			}
		}
	}
}


// detto hooverOn
function hooverOff(menuIdx)
{
	rightImg=menuIdx+1;
	if (selectedIdx!=menuIdx){
		if (selectedIdx==menuIdx-1) {
			switch(replaceArray[menuIdx])
			{
				case "alle": 	setImg(menuEntries[menuIdx],"off");
								setImg("navabstand"+menuIdx,"linkson");
								setImg("navabstand"+rightImg,"off");
							  	break;

				case "nurlinks": 	setImg(menuEntries[menuIdx],"off");
									setImg("navabstand"+menuIdx,"linkson");
									setImg("navabstand"+rightImg,"off");
							  		break;					  
			}
		} else if (selectedIdx==menuIdx+1){
			switch(replaceArray[menuIdx])
			{
				case "alle": 	setImg(menuEntries[menuIdx],"off");
								setImg("navabstand"+menuIdx,"off");
								setImg("navabstand"+rightImg,"rechtson");
							  	break;
					  
				case "nurrechts": 	setImg(menuEntries[menuIdx],"off");
									setImg("navabstand"+menuIdx,"off");
									setImg("navabstand"+rightImg,"rechtson");
							  		break;									
			}
		} else {
			switch(replaceArray[menuIdx])
			{

				case "alle": 	setImg(menuEntries[menuIdx],"off");
								setImg("navabstand"+menuIdx,"off");
								setImg("navabstand"+rightImg,"off");
							  	break;
					  
				case "nurlinks": 	setImg(menuEntries[menuIdx],"off");
									setImg("navabstand"+menuIdx,"off");
									setImg("navabstand"+rightImg,"off");
							  		break;

				case "nurrechts": 	setImg(menuEntries[menuIdx],"off");
									setImg("navabstand"+menuIdx,"off");
									setImg("navabstand"+rightImg,"off");
							  		break;
			}
		}
	}
}


//Menueintrag auswählen
function selectMenu(menuIdx) {
	//Wenn bereits ein Eintrag ausgewählt ist dann den Eintrag abwählen
	if (selectedIdx!=-99) {
		setImg(menuEntries[selectedIdx],"off");
		setImg("navabstand"+selectedIdx,"off");
		setImg("navabstand"+(selectedIdx+1),"off");
	}

	//Index von rechtem navabstand = index vom auszuwählenden menueintrag+1
	rightImg=menuIdx+1;
	switch(replaceArray[menuIdx])
	{	
		case "alle": //menueintrag aktivieren
							setImg(menuEntries[menuIdx],"on");
							//linkes bild aktivieren
							setImg("navabstand"+menuIdx,"rechtson");
							//rechtes bild aktivieren
								setImg("navabstand"+rightImg,"linkson");				
							  	break;
					  
			case "nurlinks": 	setImg(menuEntries[menuIdx],"on");
								setImg("navabstand"+menuIdx,"rechtson");
								setImg("navabstand"+rightImg,"on");
						  		break;

			case "nurrechts": 	setImg(menuEntries[menuIdx],"on");
								setImg("navabstand"+menuIdx,"on");
								setImg("navabstand"+rightImg,"linkson");
						  		break;
	}

	selectedIdx=menuIdx;
}

function setImg(imgName, setImg) 
{
	if (document.images)
	{
		if (document.images[imgName])
		{
			document.images[imgName].src = eval(imgName + setImg+ ".src");
			return;
		}
	}
	
	if (document.layers)
	{
		img = findObjNS(imgName);
		if (img != null)
		{
			img.src = eval(imgName + setImg + ".src");
		
		}
	}
}
	
	
function findObjNS(name,doc)
{
	var i,obj;
	obj = null;
	if(!doc) 
	{
		doc=document;
	}
	if (doc.images)
	{
		if (doc.images[name])
		{
			return doc.images[name];
		}
	}
	if (doc.layers)
	{
		for (i=0; obj == null && i < doc.layers.length; i++)
		{
			obj = findObjNS(name,doc.layers[i].document);
		}
	}
	if (obj != null)
	{
		return obj;
	}

	return null;
}
	
	
	// -->