How to arrange with script

Hi, how to arrange with script when a new compressor (combo box value) –TEST/OK is and I click the  save record button automatically show a print dialog for print the test certificate by select a compressor brand?  I want to change the structure of frmTest because if a user enter all the test data and print the test certificate without save record first then is the date field of table grid1 empty. The testperformance  project is available in my DropBox folder. Thanks in advance.