help with monte-carlo, ocean xl script

 hi , i have 2 problems, maybe some can help me:

i try to do monte-carlo simulation while sweeping VDD (global varible in my design) and temperature, but until now i didn't succeed.

1)   i need to do somthing like that:(psodeo code)

for( vdd=0.2 until vdd=0.6){

   for(temperature=0 until temperature=200){

       monte carlo simulation } }

i just need some help with the nesting loop....(I try with SKILL 'while' loop but, every time when i tried to change VDD (global varible) value i got error in my oceanx script.

thanks, 

2) i also need to the result of the monte-carlo simulatio:

all the result that  recieve from the process variation and thier amount ( if i do 100 sampling, i need to write to file all the result and the amount of eac resul)

so, how can i do it?,,,,to get the data from the graph and write it on file???

 thanks,