var menu_images=new Array(6);
	

	for (var i=0; i <6; i++) {
		menu_images[i]=new Array(2);
		menu_images[i][0]= new Image();
		menu_images[i][1]= new Image();
		
		menu_images[i][0].src = "/play/img/menu_play_0"+i+"_on.gif";
		menu_images[i][1].src = "/play/img/menu_play_0"+i+".gif";
	}
	
	function swap(quina,estat){
		if (document.images){
			document['menu_'+quina].src = menu_images[quina][estat].src;
		}
	}