I am applying client script for setDisplayValue on "state" field of incident form but the script is not runnign on it what can be the issue?

[ajinkya10]

Please help me out regarding this I am novice so learning things.

[kemmy1]

here's my script.  I am using the call back function (I think!)

var caller = g_form.getReference('requested_for', setCompany);
function setCompany(caller) {
     if (caller){
          g_form.setDisplayValue('slt_company', caller.company);
       }
}