function activateMenu(which)
{
	var menuItems = new Array("Home", "Buecher","Bestellen", "Veranstaltungen", "Filialen","Unternehmen", "Kontakt");
	
	//Alle zurücksetzen:
	for(var i =0;i<menuItems.length;i++){		
		img = document.getElementById("menu"+menuItems[i]);
		//alert(img.src);
		if(img.src.substr(img.src.length-6,6)=="_h.gif")
			img.src = img.src.substr(0,img.src.length-6)+".gif";
	}
	
	//Hover Bild einbauen:
	var img = document.getElementById("menu"+which);
	img.src = img.src.substr(0, img.src.length - 4) + "_h.gif";
	
	//Alle ausblenden:
	for(var i =0;i<menuItems.length;i++){		
		if(menuItems[i]==which)
			document.getElementById("sub"+menuItems[i]).style.display = "block";
		else
			document.getElementById("sub"+menuItems[i]).style.display = "none";
	}	
	
}


function hover(aImg)
{
	//onmouseover = "hover(this)" onmouseout="endHover(this)"
	var type = aImg.src.substr(aImg.src.length-3);
	var parts = aImg.src.substr(0,aImg.src.length-4);
	aImg.src = parts + "_h."+type;	
	
	
}

function endHover(aImg)
{
	var parts = aImg.src.split("_h");
	aImg.src = parts[0] + parts[1];	
}