Add window.chgat() method, submitted via e-mail by Fabian Kreutz
diff --git a/Misc/ACKS b/Misc/ACKS
index 0cbca31..b47ec6e 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -367,6 +367,7 @@
 Joseph Koshy
 Bob Kras
 Holger Krekel
+Fabian Kreutz
 Hannu Krosing
 Andrew Kuchling
 Vladimir Kushnir