Help needed: triggering a combo box selection

Question

I'm new to creating forms in Acrobat (Acrobat 9 on Mac). I'm trying to create a form for my department where a student selects a faculty name from a combo box, and once the value is selected, another field is filled with an int value (course section number).
Question: what is the correct trigger for executing the javascript for this? Mouse up seems to trigger too early and the others don't seem appropriate.
I think my rudimentary JavaScript knowledge can get me far enough to check the value and the use a switch/if to prefill the int value in the other field, so the correct trigger is my current issue.
Thanks in advance.

Answer 1

I found where it's supposed to be stored, but I'm having some issues with missing ().  I'm using Acrobat X Pro for Windows Vista.  There was a post that I've spent the last 2 hours looking for that had a modified code that added in missing (), and now I can't find it   Any help would be greatly appreciated. Anyway, here's my code:
function mater list for Alpha1()
var oAlpha1 = {
ACC: [
["-","None"], ["201",Intro to Financial Accounting], ["202",Intro to Managerial Accounting], ["-96",Selected Topics], ["-99",Directed Reading and Research]
ANTH: [
["-","None"], ["151",Emerging Humanity], ["152",Culture and Humanity], ["210",Archaeology], ["215",Physical Anthropology], ["215L",Physical Anthropology Lab], ["310",Human Origins], ["313",Culture Through Film], ["321",World Archeology], ["342",Indigenous Peoples & Modernity], ["350",Pacific Islands Cultures], ["351",Culture Thought and Behavior], ["358",Myth, Symbol, and Ritual], ["362",Gender, Culture, and Society], "380",Field Archaeology], ["383",Museum Studies], ["384",Human Skeletal Biology], ["415",Human Ecological Adaptation], ["420",Culture & Communication], ["422",Magic Witchcraft & Supernatl], ["423",Social and Cultural Change], ["437",Pacific Archaeology], ["447",Polynesian Cultures], ["448",Micronesian Cultures], ["457",Okinawans Locally & Globally], ["458",Forensic Investigations], ["460",Adv Tech in Forensic Anth], ["474",Culture and Mental Illness], ["483",Archaeology of Hawaii], ["487",Philippine Culture], ["490",History & Theory Anthropology], ["495",Research Seminar], ["496",Selctd Tpcs:], ["499",Directed Reading & Research], ["296F",Intro to Field Archaeology], ["496A",Culture Through Film], ["496B",Phillipines Studies], ["496C",Museum Studies], ["496D",Okinawans Locally & Globally], ["496E",Pacific Island Cultures]
APSC: [
["-","None"], ["486",Senior Project-Applied Sci], ["490",Senior Practicum], ["486C",Senior Project-CENT], ["486I",Senior Project-IT], ["486M",Senior Project-CULM], ["486R",Senior Project-RESP], ["490C",Admin Practicum-CENT], ["490I",Admin Practicum-IT], ["490M",Admin Practicum-CULM], ["490R",Admin Practicum-RESP]
ASTR: [
["-","None"], ["110",Survey of Astronomy]
It goes on like this through all our subjects.  I then modified the next bits of code in thomp's doc to reflect what I need to be pulled and populated:
var nACCItems=oAlpha1["ACC"];
    var n201Title=ACCItems[1]; var n202Title=ACCItems[1]; var n-96Title=ACCItems[1]; var n-99Title=ACCItems[1];
var nANTHItems=oAlpha1["ANTH"];
    var n151Title=ANTHItems[1]; var n152Title=ANTHItems[1]; var n210Title=ANTHItems[1]; var n215Title=ANTHItems[1]; var n215LTitle=ANTHItems[1]; var n310Title=ANTHItems[1]; var n313Title=ANTHItems[1]; var n321Title=ANTHItems[1]; var n342Title=ANTHItems[1]; var n350Title=ANTHItems[1]; var     n351Title=ANTHItems[1]; var n358Title=ANTHItems[1]; var n362Title=ANTHItems[1]; var n380Title=ANTHItems[1]; var n383Title=ANTHItems[1]; var n384Title=ANTHItems[1]; var n415Title=ANTHItems[1]; var n420Title=ANTHItems[1]; var n422Title=ANTHItems[1]; var n423Title=ANTHItems[1]; var n437Title=ANTHItems[1]; var n447Title=ANTHItems[1]; var n448Title=ANTHItems[1]; var n457Title=ANTHItems[1]; var n458Title=ANTHItems[1]; var n460Title=ANTHItems[1]; var n474Title=ANTHItems[1]; var n483Title=ANTHItems[1]; var n487Title=ANTHItems[1]; var n490Title=ANTHItems[1]; var n495Title=ANTHItems[1]; var n496Title=ANTHItems[1]; var n499Title=ANTHItems[1]; var n296FTitle=ANTHItems[1]; var n496ATitle=ANTHItems[1]; varn496BTitle=ANTHItems[1]; var n496CTitle=ANTHItems[1]; var n496DTitle=ANTHItems[1]; var n496ETitle=ANTHItems[1];
var nAPSCItems=oAlpha1["APSC"];
through all our subjects.  Do I need to leave the lists of var nSUBJItems and var nNUMTitle separate, or is the way I have them (subject followed by titles in each subject) okay?
Then, I made the keystroke codes.  Do they go in the Document level as well, or do they go in the keystroke event or both?  Right now, I just have them as a doc level code because I can't save the document level code without fixing the () error.  I'd just like to know ahead of time.
Number Keystroke Event
function SetNumberEntries()
if(event.willCommit)
// Get the numbers list from the Master List
// Since the selection is being committed,
// event.value contains the Alpha1 name
var lst = oAlpha1[event.value];
// Clear the Number list if there are no numbers for the selected alpha
if( (lst != null) && (lst.length > 0) )
this.getField("NumberSelect").setItems(lst);
else
this.getField("NumberSelect").clearItems();
// We have a new number list and the first entry is
// is a non-selection, so clear the title field.
this.getField("Title").value = 0;
Uncommitted Keystroke Event
function SetTitleValue()
// In order to get easy access to the export value, i.e. Title. This
// function needs to be run on the un-committed change event.
// This field is set up for Commit on select so we know the value
// will be committed anyway.
if(!event.willCommit)
// If the export value is Not written then
// set the title to --.
var nSelExp = --;
if(!isNaN(event.changeEx))
nSelExp = event.changeEx
this.getField("Title").value = nSelExp;