text: var targetFilm = document.getElementById("film"), confirm_film = document
  		.getElementById("deleteFilm"), targetBook = document
  		.getElementById("book"), confirm_book = document
  		.getElementById("deleteBook"), targetShow = document
  		.getElementById("show"), confirm_show = document
  		.getElementById("deleteShow");
  
  function validateUser() {
  	if (targetUser.value != confirm_user.value) {
  		confirm_user.setCustomValidity("Los nombres no coinciden.");
  	} else {
  		confirm_user.setCustomValidity('');
  	}
  }
  
  function validateFilm() {
  	if (targetFilm.value != confirm_film.value && confirm_film.value != "") {
  		confirm_film.setCustomValidity("Los nombres no coinciden.");
  	} else {
  		confirm_film.setCustomValidity('');
  	}
  }
  
  function validateShow() {
  	if (targetShow.value != confirm_Show.value && confirm_show.value != "") {
  		confirm_show.setCustomValidity("Los nombres no coinciden.");
  	} else {
  		confirm_show.setCustomValidity('');
  	}
  }
  
  function validateBook() {
  	if (targetBook.value != confirm_book.value && confirm_book.value != "") {
  		confirm_book.setCustomValidity("Los nombres no coinciden.");
  	} else {
  		confirm_book.setCustomValidity('');
  	}
  }
  
  targetUser.onchange = validateUser;
  confirm_user.onkeyup = validateUser;
  
  targetFilm.onchange = validateFilm;
  confirm_film.onkeyup = validateFilm;
  
  targetShow.onchange = validateShow;
  confirm_show.onkeyup = validateShow;
  
  targetBook.onchange = validateBook;
  confirm_book.onkeyup = validateBook;
  
  
  
  