var bigImageShowing = false;

function toggleLargeImage (idx) {
        if (bigImageShowing) {
                container = document.getElementById("pediaImage" + idx);
                container.className = "pediaImageHidden";
		bigImageShowing = false;
        }
        else {
                container = document.getElementById("pediaImage" + idx);
                container.className = "pediaImage";
		bigImageShowing = true;
        }
}