1 files changed, 21 insertions, 0 deletions
diff --git a/src/rendermail.js b/src/rendermail.js
new file mode 100644
index 0000000..1331913
--- /dev/null
+++ b/src/rendermail.js
@@ -0,0 +1,21 @@
+function tabSelection(evt) {
+    const self = evt.target;
+
+    for (const ts of self.parentElement.parentElement.children) {
+        ts.classList.remove('is-active');
+    }
+    self.parentNode.classList.add('is-active');
+
+    const bodies = self.parentElement.parentElement.parentElement.parentElement.children[1].children;
+    for (const ts of bodies) {
+        ts.classList.add('is-hidden');
+    }
+    bodies[+self.parentElement.attributes.data.value].classList.remove('is-hidden');
+}
+
+document.addEventListener("DOMContentLoaded", function() {
+    const tabSections = document.getElementsByClassName("jwm-mail-body-multipart-alternative");
+    for (const ts of tabSections) {
+        Array.from(ts.children[0].children[0].children).forEach(element => element.children[0].addEventListener('click', tabSelection));
+    }
+})