+ acme.IE5 = 5 <= acme.IE && acme.IE < 5.5;\r
+ acme.IE55 = 5.5 <= acme.IE && acme.IE < 6;\r
+ acme.IE6 = 6 <= acme.IE && acme.IE < 7;\r
+ acme.IE7 = 7 <= acme.IE && acme.IE < 8;\r
+ acme.IE8 = 8 <= acme.IE && acme.IE < 9;\r
+ acme.IE9 = 9 <= acme.IE && acme.IE < 10;\r