Subs = new Array("none","artwork","about","more");

function displaySubMenu(Sub){	
	var test = document.getElementById("nav_sub_"+Sub);
	test.style.display="block";

	for (var i=0; i< Subs.length; i++){
		var subname = String("nav_sub_"+Subs[i]);
		var subhide = document.getElementById(subname);
		if(Subs[i]!=Sub)subhide.style.display="none";
	};

};

function displayMainMenu(){	
Main = new Array("searchfield","nav_search","nav_head","headbox","headlink","nav_artwork","nav_about","nav_news","nav_more","nav_shop", "nav_newsletter");
	for (var i=0; i< Main.length; i++){
	var test = document.getElementById(Main[i]);
	test.style.display="block";	
	};
};

function hideMainMenu(){	

Main = new Array("searchfield","nav_search","nav_head","headbox","headlink","nav_artwork","nav_about","nav_news","nav_more","nav_shop", "nav_newsletter");
	for (var i=0; i< Main.length; i++){
	var test = document.getElementById(Main[i]);
	test.style.display="none";	
	};
};