diff --git a/index.html b/index.html
index 4019c42..9378bd6 100644
--- a/index.html
+++ b/index.html
@@ -140,8 +140,8 @@
@@ -11143,6 +11143,12 @@
});
}
+ function diff_hours(dt2, dt1) {
+ var diff =(dt2.getTime() - dt1.getTime()) / 1000;
+ diff /= (60 * 60);
+ return Math.abs(Math.round(diff));
+ }
+