JavaScript & DHTML Cookbook by Danny Goodman The following errata were *corrected* in the 5/05 reprint: Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem {66} 3rd paragraph; "If the first value is null or undefined, the second value is assigned to the property" NOW READS (monofont sections delimited by underscores): "If the first value evaluates to a boolean _false_ (e.g., _null_, _undefined_, zero, an empty string, and so on), the second value is assigned to the property." (72) last paragraph; You want add NOW READS: You want to add