dins=0;
function submenu(capa){	
	if(capa=='submenu' && document.getElementById('submenu2') && document.getElementById('submenu4')){
		document.getElementById('submenu2').style.visibility='hidden';
		document.getElementById('submenu4').style.visibility='hidden';
	}
	if(capa=='submenu2' && document.getElementById('submenu') && document.getElementById('submenu4')){
		document.getElementById('submenu').style.visibility='hidden';
		document.getElementById('submenu4').style.visibility='hidden';
	}
	if(capa=='submenu4' && document.getElementById('submenu') && document.getElementById('submenu2')){
		document.getElementById('submenu').style.visibility='hidden';
		document.getElementById('submenu2').style.visibility='hidden';
	}
	
	if(document.getElementById(capa).style.visibility=='visible'){
		document.getElementById(capa).style.visibility='hidden';
		dins=0;
	}else{
		document.getElementById(capa).style.visibility='visible';
		dins=capa;
	}
	
}

function submenu2(capa){	
	if(capa=='submenu' && document.getElementById('submenu2'))
		document.getElementById('submenu2').style.visibility='hidden';
	if(capa=='submenu2' && document.getElementById('submenu'))  document.getElementById('submenu').style.visibility='hidden';
	
	if(document.getElementById(capa).style.visibility=='visible'){
		document.getElementById(capa).style.visibility='hidden';
		dins=0;
	}else{
		document.getElementById(capa).style.visibility='visible';
		dins=capa;
	}
	
}