+/**
+ * Returns whether a post with the given ID exists on the current page.
+ *
+ * @param postId
+ * The post ID to check for
+ * @returns {Boolean} <code>true</code> if a post with the given ID already
+ * exists on the page, <code>false</code> otherwise
+ */
+function hasPost(postId) {
+ return $(".post#" + postId).length > 0;
+}
+
+/**
+ * Returns whether a reply with the given ID exists on the current page.
+ *
+ * @param replyId
+ * The reply ID to check for
+ * @returns {Boolean} <code>true</code> if a reply with the given ID already
+ * exists on the page, <code>false</code> otherwise
+ */
+function hasReply(replyId) {
+ return $("#sone .reply#" + replyId).length > 0;
+}