<script>
  document.addEventListener("DOMContentLoaded", function() {
    // 1. Grab references to your 3 buttons
    const btnOne = document.getElementById("btnOne");
    const btnTwo = document.getElementById("btnTwo");
    const btnThree = document.getElementById("btnThree");
    
    // 2. Store your Base64-encoded messages (NOT in plain text)
    const msgOneEncoded   = "TWVzc2FnZSBPbmU=";    // "Message One"
    const msgTwoEncoded   = "TWVzc2FnZSBUd28=";    // "Message Two"
    const msgThreeEncoded = "TWVzc2FnZSBUaHJlZQ=="; // "Message Three"

    // 3. Assign click handlers to decode and show them
    btnOne.addEventListener("click", function() {
      const decoded = atob(msgOneEncoded);
      alert(decoded);
    });

    btnTwo.addEventListener("click", function() {
      const decoded = atob(msgTwoEncoded);
      alert(decoded);
    });

    btnThree.addEventListener("click", function() {
      const decoded = atob(msgThreeEncoded);
      alert(decoded);
    });
  });
</script>
