SB: Somebody care to explain why this search give so many hits? http://mini.net/tcl/2?if+0+{* [NEM] - It's used a lot in pages which are mostly code. By surrounding the non-code explanation parts in if 0 { This is some explanation } Then the whole page can be copied and pasted into a tclsh/wish/tkcon without the explanation bits causing an error. It's just a way of doing block commenting.