function mostrar_respuesta (ID,ALTURA) {
		var object=document.getElementById(ID);
		state=object.style.visibility;
		
		if(state=='visible')
		{object.style.visibility='hidden';
		object.style.height=0+'px';
		}
		else
		{object.style.visibility='visible';
		object.style.height=ALTURA+'px';
		}	
	}
	
	
function mostrar_respuesta2 (ID) {
		var object=document.getElementById(ID);
		state=object.style.visibility;
		
		if(state=='visible')
		{object.style.visibility='hidden';
		
		}
		else
		{object.style.visibility='visible';
		
		}	
	}