text: function setTheme(theme) {
      console.log("Cambiar tema");
      var themes = ["claro", "oscuro","adolescente","adulto","nino"];
      for (var i=0; i < themes.length; i++) {
  
          var styleSheet = document.getElementById(themes[i]);
          if (themes[i] == theme) {
              styleSheet.removeAttribute("disabled");
          } else {
              styleSheet.setAttribute("disabled", "disabled");
          }
      }
  }
  