Further refinements to Codersrank handling

assets/js/main.js

@@ -36,3 +36,28 @@
 	}
   });
 })();
+
+function prepareCodersrank(type) {
+  var placeholders = document.getElementsByClassName("cr-placeholder");
+  if (localStorage.getItem("load-codersrank")) {
+    loadCodersrank(type);
+  } else {
+    for (ph of placeholders) {
+      ph.addEventListener("click", e => {
+          e.preventDefault();
+          console.log(e);
+        localStorage.setItem("load-codersrank", true);
+        loadCodersrank(type);
+      });
+    }
+  }
+}
+
+function loadCodersrank(type) {
+  var script = document.createElement("script");
+  script.src = "https://unpkg.com/@codersrank/activity/codersrank-" + type + ".min.js";
+  for (ph of document.getElementsByClassName("cr-placeholder")) {
+    ph.parentElement.innerHTML = ph.childNodes[0].data;
+  }
+  document.head.appendChild(script);
+}