vic typo?

[Christopher Cope <cope@mcs.anl.gov>]

Hi, I've been messing around with vic, and came across what I think is a 
typo, though I'm fairly incompetent with Tcl, so maybe it's a way to 
change class variables, though I doubt it, but at the time I'm hunting for 
that syntax anyway. :)

mash/tcl/vic/ui-visualframe.tcl line 216

$self set_dither Gray


theres a function named set-dither, so its simply a -/_ typo.


Class foo {
 blah 1
}

i haven't been able to find a very indepth tcl reference online, so i'm 
mostly learning from code examples

to reference a class var, i use

set foo [$self get_option blah]

is this the best way to do this?

how do change the value of blah?

set blah 2 ?

im using that but blah seems to revert back to 1 once i leave the 
function.

also, are there any good tcl tutorials online that go into depth about 
this stuff?
thanks,
chris