text: function Mostrar(){
      document.getElementById("img").style.display = "block";
  }
  function Ocultar(){
      document.getElementById("img").style.display = "none";
  }
  function Mostrar_Ocultar(){
      // document.getElementById("img").style.display = "block";
      var img = document.getElementById("img");
      if(img.style.display == "none"){
      Mostrar();
      // document.getElementById("boton").value ="Mostrar";
      }
      else{
      Ocultar();
      // document.getElementById("boton").value ="Ocultar";
      }
  }
  