simple script problem

[Barry]

HI all

I'm having another (what must be) simple problem;
I am attempting my first grads script (.gs) and I can't
seem to get the script to interpret my alphanumeric
assignments.

What I am trying to do is run a plot 9 times- the binary
file has 9 times of day in it (ignore the commented out statements)...
I simply want to write a title for each one and create a postscript
output file with a unique name indicating what the plot is.

Can someone tell me what is wrong- again, the documentation on scripts
has nothing like what I am trying to do.

Thanks folks!

barry

'open test.ctl'
'set display grey white'
'set lat 15 40'
'set lon -180 -140'
'set cint 5'
stat = "average"
season = "winter"
type = "full sky"
*s = 1
*while (s < 6)

*if (s = 1) season = winter ; endif
*if (s = 2) season = spring ; endif
*if (s = 3) season = summer ; endif
*if (s = 4) season = fall   ; endif
*if (s = 5) season = year   ; endif

hr = 1
while (hr < 10)

if (hr = 1) hour = "00Z" ; endif
if (hr = 2) hour = "03Z" ; endif
if (hr = 3) hour = "06Z" ; endif
if (hr = 4) hour = "09Z" ; endif
if (hr = 5) hour = "12Z" ; endif
if (hr = 6) hour = "15z" ; endif
if (hr = 7) hour = "18z" ; endif
if (hr = 8) hour = "21z" ; endif
if (hr = 9) hour = "day" ; endif

*'set t 's' '
'set lev 'hr' '
'display stat'
'draw title 'stat'  'season'  'hour'  'type''
'printim 'stat' _ 'season' _ 'hour' _ 'type' .ps'
'clear'
*'close 1'

hr = hr + 1
endwhile

*s = s + 1
*endwhile