function blockNone(capa,estado)
{	
	try
	{
	document.getElementById(capa).style.display = estado;
	}
	catch(exception)	{}
}

	function cambiar(){
	
		if (document.getElementById('formacontacto') == null)
			return;
		
		var valor = document.getElementById('formacontacto').value;		
		if(valor == "2"){
			document.getElementById('d_cp').style.display = "block";
			//d_buz.style.display = "none";
			document.getElementById('d_telefono').style.display = "none";
			document.getElementById('tipovia').disabled = false;
			document.getElementById('nombrevia').disabled = false;
			document.getElementById('numerovia').disabled = false;
			document.getElementById('portalvia').disabled = false;
			document.getElementById('escaleravia').disabled = false;
			document.getElementById('pisovia').disabled = false;
			document.getElementById('letravia').disabled = false;
			document.getElementById('localidadvia').disabled = false;
			document.getElementById('cpvia').disabled = false;
			document.getElementById('telefono1').disabled = true;
			document.getElementById('desde1').disabled = true;
			document.getElementById('hasta1').disabled = true;
			document.getElementById('telefono2').disabled = true;
			document.getElementById('desde2').disabled = true;
			document.getElementById('hasta2').disabled = true;
			//var numero = eval("document.getElementById('numerovia')");
			//var cp = eval("document.getElementById('cpvia')");
			ponerCPVia();
		}else if (valor == "1"){
			document.getElementById('d_telefono').style.display = 'block';
			document.getElementById('d_cp').style.display = "none";
			//d_buz.style.display = "none";
			document.getElementById('telefono1').disabled = false;
			document.getElementById('desde1').disabled = false;
			document.getElementById('hasta1').disabled = false;
			document.getElementById('telefono2').disabled = false;
			document.getElementById('desde2').disabled = false;
			document.getElementById('hasta2').disabled = false;
			document.getElementById('tipovia').disabled = true;
			document.getElementById('nombrevia').disabled = true;
			document.getElementById('numerovia').disabled = true;
			document.getElementById('portalvia').disabled = true;
			document.getElementById('escaleravia').disabled = true;
			document.getElementById('pisovia').disabled = true;
			document.getElementById('letravia').disabled = true;
			document.getElementById('localidadvia').disabled = true;
			document.getElementById('cpvia').disabled = true;
		}else if (valor == "3"){
			//d_buz.style.display = "none";
			document.getElementById('d_telefono').style.display = "none";
			document.getElementById('d_cp').style.display = "none";
			document.getElementById('telefono1').disabled = true;
			document.getElementById('desde1').disabled = true;
			document.getElementById('hasta1').disabled = true;
			document.getElementById('telefono2').disabled = true;
			document.getElementById('desde2').disabled = true;
			document.getElementById('hasta2').disabled = true;
			document.getElementById('tipovia').disabled = true;
			document.getElementById('nombrevia').disabled = true;
			document.getElementById('numerovia').disabled = true;
			document.getElementById('portalvia').disabled = true;
			document.getElementById('escaleravia').disabled = true;
			document.getElementById('pisovia').disabled = true;
			document.getElementById('letravia').disabled = true;
			document.getElementById('localidadvia').disabled = true;
			document.getElementById('cpvia').disabled = true;
		}else{
			//d_buz.style.display = "none";
			document.getElementById('d_telefono').style.display = "none";
			document.getElementById('d_cp').style.display = "none";
			document.getElementById('telefono1').disabled = true;
			document.getElementById('desde1').disabled = true;
			document.getElementById('hasta1').disabled = true;
			document.getElementById('telefono2').disabled = true;
			document.getElementById('desde2').disabled = true;
			document.getElementById('hasta2').disabled = true;
			document.getElementById('tipovia').disabled = true;
			document.getElementById('nombrevia').disabled = true;
			document.getElementById('numerovia').disabled = true;
			document.getElementById('portalvia').disabled = true;
			document.getElementById('escaleravia').disabled = true;
			document.getElementById('pisovia').disabled = true;
			document.getElementById('letravia').disabled = true;
			document.getElementById('localidadvia').disabled = true;
			document.getElementById('cpvia').disabled = true;
		}
	}