how to selected value of lov put in form

1. first we cerate a record
2. record joined with lov
problem is how to selected value of lov put in the form

There are two ways to do this:
1)Go to lov property pallete+click on column mapping properties->there you can find return value,there you can browse and select column
2)otherwise declare a global variable and specify in return value

Ex:
Job title is lov,then declare a global variable in new form instance as
global.a=:emp.job_title;
give this global variable in lov pp...