function clean(object) {
		switch (object.value) {
			case " ":
				object.value = "";
				object.style.color = "#0090cd";
				break;
				
			case "nombre":
				object.value = "";
				object.style.color = "#0090cd";
				break;
				
			case "email":
				object.value = "";
				object.style.color = "#0090cd";
				break;
				
			case "telf":
				object.value = "";
				object.style.color = "#0090cd";
				break;
				
			case "comentario":
				object.value = "";
				object.style.color = "#0090cd";
				break;
		}
}

function comproba(object) {
	if (object.value == "") {
		object.value = object.name;
		object.style.color = "#30bffc";
		
	}
}