if(document.images) 
{ 
bild=new Array() 
bild[0]= new Image() 
bild[0].src="../images/main.gif" 
bild[1]= new Image() 
bild[1].src="../images/sub1.gif" 
bild[2]= new Image() 
bild[2].src="../images/sub2.gif" 
bild[3]= new Image() 
bild[3].src="../images/sub3.gif" 
bild[4]= new Image() 
bild[4].src="../images/sub4.gif" 
bild[5]= new Image() 
bild[5].src="../images/sub5.gif" 
bild[9]= new Image() 
bild[9].src="../images/sub9.gif" 
//more pictures may be loaded here 
} 
function navinfo(picturenumber) 
{ 
	if(document.images) 
	{
		if (! picturenumber == 0 )
			document.imagedisplay.src=bild[picturenumber].src
		else if (typeof(document.imagedisplay.clicked) == "number" )
			document.imagedisplay.src=bild[document.imagedisplay.clicked].src
		else
			document.imagedisplay.src=bild[0].src
	}
} 




function navClick(picturenumber)
{
	document.imagedisplay.clicked=picturenumber
}