diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..92be8bb
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+*.js filter=dateHook.sh
+*.html filter=dateHook.sh
diff --git a/dateHook.sh b/dateHook.sh
new file mode 100755
index 0000000..a2f7979
--- /dev/null
+++ b/dateHook.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+lastDate=$(git log --pretty=format:"%ad" -1)
+sed -e "s/\$DATE[^\$]\$/$DATE: ${lastDate}$/"