function muestra_oculta(id,id2,id3){
				if (document.getElementById){ 
				var el = document.getElementById(id); //se define la variable "el" igual a nuestro div
				el.style.display = (el.style.display == 'none') ? 'block' : 'none';
				var el2 = document.getElementById(id2); //se define la variable "el" igual a nuestro div
				el2.style.display = (el2.style.display == 'block') ? 'none' : 'block';
				var el3 = document.getElementById(id3); //se define la variable "el" igual a nuestro div
				el3.style.display = (el3.style.display == 'block') ? 'none' : 'block';
				}
				
		}
		
function muestra_oculta2(id,id2,id3){
				if (document.getElementById){ 
				var el = document.getElementById(id); //se define la variable "el" igual a nuestro div
				el.style.display = (el.style.display == 'none') ? 'block' : 'block';
				var el2 = document.getElementById(id2); //se define la variable "el" igual a nuestro div
				el2.style.display = (el2.style.display == 'block') ? 'none' : 'none';
				var el3 = document.getElementById(id3); //se define la variable "el" igual a nuestro div
				el3.style.display = (el3.style.display == 'block') ? 'none' : 'none';
				}
				
		}