diff --git a/brush-timeline.js b/brush-timeline.js
index 307a3c2..165c162 100644
--- a/brush-timeline.js
+++ b/brush-timeline.js
@@ -137,6 +137,11 @@ class BrushTimeline extends HTMLElement {
     this.setAttribute('end', end);
     this.updateVis();
   }
+
+  logAndUpdateEnd(end) {
+    console.log(end);
+    this.end = end
+  }
 }

-customElements.define('brush-timeline', BrushTimeline);
\ No newline at end of file
+customElements.define('brush-timeline', BrushTimeline);