Initial commit

themes/bluewater/static/js/top-arrow.js

@@ -0,0 +1,18 @@
+var toTopButton = document.getElementById("to-top-button");
+
+// When the user scrolls down 200px from the top of the document, show the button
+window.onscroll = function () {
+  if (
+    document.body.scrollTop > 250 ||
+    document.documentElement.scrollTop > 250
+  ) {
+    toTopButton.classList.remove("hidden");
+  } else {
+    toTopButton.classList.add("hidden");
+  }
+};
+
+// When the user clicks on the button, scroll to the top of the document
+function goToTop() {
+  window.scrollTo({ top: 0, behavior: "smooth" });
+}