function init(){
	MM_preloadImages('imagenes/menuhover.jpg');
}
function opac(id){
	var queue = Effect.Queues.get(id);
	queue.each(function(effect) { effect.cancel(); });
	new Effect.Opacity(id, { from: 1.0, to: 0.7, duration: 0.2, queue: { position: 'end', scope: id } });
}
function desopac(id){
	var queue = Effect.Queues.get(id);
	queue.each(function(effect) { effect.cancel(); });
	new Effect.Opacity(id, { to: 1, duration: 0.2, queue: { position: 'end', scope: id } });
}
function mostrar(id){
	if(noti_prev!=id){
		if(noti_prev!=""){
			Effect.Fade('dv_'+noti_prev, { duration: 0.2, queue: { position: 'end', scope: 'mostrar' } });
		}
		Effect.Appear('dv_'+id, { duration: 0.2, queue: { position: 'end', scope: 'mostrar' } });
		noti_prev = id;
	}
}
/* MENUS NIVEL 1 */
time = "";
oculto = "";
function ocultar(){
	if(oculto!=''){
		Effect.Fade('submenu'+oculto, { duration: 0.2 });
		oculto = "";
	}
}
function mostrar_menu(id){
	if(time!="")	
		clearTimeout(time);
	if(oculto!=id){	
		ocultar();
		Effect.Appear('submenu'+id, { duration: 0.2, queue: { position: 'end', scope:'menu' } });
		oculto = id;
	} else if(oculto=='') {
		Effect.Appear('submenu'+id, { duration: 0.2, queue: { position: 'end', scope:'menu' } });
		oculto = id;
	}
}
function ocultar_menu(){
	time = setTimeout("ocultar()",000);	
}
/* FIN MENUS NIVEL 1 */
/* MENUS NIVEL 2 */
time2 = '';
oculto2 = '';
function ocultar2 () {
	if (oculto2 != ''){
		Effect.Fade('submenu2_' + oculto2, { duration: 0.2 });
		oculto2 = '';
	}
}
function mostrar_menu2 (id) {
	if (time2 != '')	
		clearTimeout(time2);
	if (oculto2 != id){	
		ocultar2();
		Effect.Appear('submenu2_'+id, { duration: 0.2, queue: { position: 'end', scope:'menu' } });
		oculto2 = id;
	} else if(oculto2 == '') {
		Effect.Appear('submenu2_'+id, { duration: 0.2, queue: { position: 'end', scope:'menu' } });
		oculto2 = id;
	}
}
function ocultar_menu2(){
	time2 = setTimeout("ocultar2()",000);	
}
/* FIN MENUS NIVEL 2 */
img_prev = 1;
function cambiar_cabecera(){
	next = img_prev+1;
	if(next>3)
		next = 1;
	new Effect.Parallel([
	  new Effect.Appear('rota'+next, { sync: true, duration: 0.5 }), 
	  new Effect.Fade('rota'+img_prev, { sync: true, duration: 0.5 })
	], { 
	  duration: 3,
	  delay: 3
	});
	img_prev = next;
	cab = setTimeout("cambiar_cabecera()",6000);	
}