+/**
+ * Returns the content of the page-id attribute.
+ *
+ * @returns The page ID
+ */
+function getPageId() {
+ return $("#sone .page-id").text();
+}
+
+/**
+ * Returns whether the current page is the index page.
+ *
+ * @returns {Boolean} <code>true</code> if the current page is the index page,
+ * <code>false</code> otherwise
+ */
+function isIndexPage() {
+ return getPageId() == "index";
+}
+
+/**
+ * Returns whether the current page is a “view Sone” page.
+ *
+ * @returns {Boolean} <code>true</code> if the current page is a “view Sone”
+ * page, <code>false</code> otherwise
+ */
+function isViewSonePage() {
+ return getPageId() == "view-sone";
+}
+
+/**
+ * Returns the ID of the currently shown Sone. This will only return a sensible
+ * value if isViewSonePage() returns <code>true</code>.
+ *
+ * @returns The ID of the currently shown Sone
+ */
+function getSoneId() {
+ return $("#sone .sone-id").text();
+}
+