var led = <?php echo get_field('why_led'); ?>;
  var optics = <?php echo get_field('why_led'); ?>;
  var ledil = <?php echo get_field('why_led'); ?>;

  function toLED() {
    document.getElementById("change-box").innerHTML = "<p class='small'>" + led + "</p>";
    document.getElementById("p-button").style.backgroundColor = "yellow";
    document.getElementById("p-button").style.color = "black";

    document.getElementById("p-button2").style.backgroundColor = "black";
    document.getElementById("p-button2").style.color = "white";
    document.getElementById("p-button3").style.backgroundColor = "black";
    document.getElementById("p-button3").style.color = "white";
}