ErklIntro.js

function erklOne() {
    document.getElementById("InhaltOne").open = true;
}

function erklTwo() {
    document.getElementById("InhaltTwo").open = true;
}

function erklThree() {
    document.getElementById("InhaltThree").open = true;
}

function erklFour() {
    document.getElementById("InhaltFour").open = true;
}