ascii import

[Joerg Franke <joerg.franke@xxxxxxxxxxxxxxxxxxxx>]

Hi ferreters,
I want to use an ascii file wich looks like the following:

# Meridional streamfunction (Sv)
# Depth level =   1
# latitude   depth    global ocean        Atlantic Ocean      
Indo-Pacific Ocean
      90.00      6.00       -999.999            -999.999            
-999.999     
      88.20      6.00        0.00000             0.00000            
-999.999
      86.40      6.00      -0.409342E-001      -0.409342E-001       
-999.999
...
# Depth level =   2
# latitude   depth    global ocean        Atlantic Ocean      
Indo-Pacific Ocean
      90.00     18.00       -999.999            -999.999            
-999.999
      88.20     18.00        0.00000             0.00000            
-999.999
      86.40     18.00      -0.409342E-001      -0.409342E-001       
-999.999
      84.60     18.00      -0.231117           -0.231117            
-999.999  
...

I managed to read the data into 5 different variables (FILE/VAR="...) 
but of cause I only want the 3. - 5. column as a variable and the 1. 
column as y-coordinate (J-axis) and the 2. column as z-coordinate 
(k-axis). How can I import the data correctly.

Thanks in advance
Cheers
Jörg