Fix Codersrank stuff

assets/js/main.js

@@ -35,29 +35,34 @@
       cbox.checked = !cbox.checked;
 	}
   });
-})();
 
-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);
-      });
+  if (crTypes) {
+    // Codersrank
+    const placeholders = document.getElementsByClassName("cr-placeholder");
+    if (localStorage.getItem("load-codersrank")) {
+      loadCodersrank(crTypes);
+    } else {
+      for (ph of placeholders) {
+        ph.addEventListener("click", e => {
+            e.preventDefault();
+            console.log(e);
+          localStorage.setItem("load-codersrank", true);
+          loadCodersrank(crTypes);
+        });
+      }
     }
   }
-}
 
-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);
-}
+	function loadCodersrank(types) {
+		const scriptElems = [];
+		for (type of types) {
+			const script = document.createElement("script");
+			script.src = "https://unpkg.com/@codersrank/activity/codersrank-" + type + ".min.js";
+			scriptElems.push(script);
+		}
+		for (ph of document.getElementsByClassName("cr-placeholder")) {
+			ph.parentElement.innerHTML = ph.childNodes[0].data;
+		}
+		document.head.append(...scriptElems);
+	}
+})();