/* Enlarging images */
var img = document.getElementsByClassName("showcaseimg");
for (i = 0; i < img.length; i++) {
        img[i].onclick = onClick;
}
function onClick(e)
{
        var interval;
        setInterval(function() {
            e.target.style.transform="scale(2,2)"
            window.onclick = function() {
                clearInterval(interval);
            }
        }, 500);
}