Using screen fields from flavor and scripting on those values

Hi  Experts ,

I  have a flavor which shows 4 values in  4 text box's   now based on those values I have to execute a script (using script button here ) , this script is basically displaying results from IW 28 using those values .

When I try to do it the script is failing as it does not recognise those 4 values since they are from a different screen.

Kindly suggest how I can run the script that displays results based on values that were given on my flavor screen .

Best regards,

pradeep.