document.getElementById("trigger").onclick = function setValues() {

    var select = document.getElementById("player-select");
    var playerChoice = select.options[select.selectedIndex].text;
    console.log(playerChoice);

    var aiRandom = Math.floor((Math.random() * 3) + 1);
    console.log(aiRandom);

    if (aiRandom === 1) {
      var aiChoice = "Stein";
    } else if (aiRandom === 2) {
      var aiChoice = "Schere";
    } else {
      var aiChoice = "Papier";
    }
    console.log(aiChoice);

    if (aiChoice === "Stein" && playerChoice === "Stein") {
      var result = "Unentschieden!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Stein" && playerChoice === "Schere") {
      var result = "Verloren, schade!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Stein" && playerChoice === "Papier") {
      var result = "Gewonnen, Glückwunsch!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Schere" && playerChoice === "Stein") {
      var result= "Gewonnen, Glückwunsch!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Schere" && playerChoice === "Schere") {
      var result = "Unentschieden!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Schere" && playerChoice === "Papier") {
      var result = "Verloren, schade!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Papier" && playerChoice === "Stein") {
      var result = "Verloren, schade!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Papier" && playerChoice === "Schere") {
      var result = "Gewonnen, Glückwunsch!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    } else if (aiChoice === "Papier" && playerChoice === "Papier") {
      var result = "Unentschieden!";
      document.getElementById("result-box").innerHTML = "Der Computer wählte " + aiChoice + "." + " " + result;
    }

    if (result === "Verloren, schade!") {
      document.getElementById("result-box").style.borderColor = "red";
    } else if (result === "Gewonnen, Glückwunsch!") {
      document.getElementById("result-box").style.borderColor = "green";
    } else {
      document.getElementById("result-box").style.borderColor = "black";
    }
  }