let colorImage = document.getElementById("colorImage");
let button2 = document.getElementById("button2");
function changeToBW() {
if (colorImage.getAttribute('src') === "./img1.png") {
colorImage.setAttribute('src', "./img2.png");
}
else {
colorImage.setAttribute('src', "./img1.png");
}
}
button2.addEventListener("click", changeToBW);
