Replace minimal groups
diff --git a/public/js/demo/vc.html b/public/js/demo/vc.html
index d4924e4..853d07e 100644
--- a/public/js/demo/vc.html
+++ b/public/js/demo/vc.html
@@ -60,6 +60,14 @@
};
var vc = KorAP.VirtualCollection.render(json);
document.getElementById('vc').appendChild(vc.element());
+
+ function showJSON() {
+ document.getElementById("json").innerHTML = JSON.stringify(vc.root().toJson());
+ };
+
</script>
+
+ <p><a onclick="showJSON()" style="cursor:pointer">show JSON!</a></p>
+ <div id="json" style="background-color:white; color: black; padding: 1em; font-family: mono;"></div>
</body>
</html>