Dynamic actions cannot access an item with display only type

I want to use a dynamic action to show and hide a field based upon the value of another item.  When the items type is set to "text field" I can access it easily by just selecting the item, but I cannot when the type of field is set to "display only".  

I have tried using the DOM reference but it doesn't access the innerHTML element the way I am trying, eg. P140_DUTY_TYPE.innerHTML

I have also tried using JQUERY selectors (which I am new to).  From what I learned I expected the selector to be:

('span#P140_DUTY_TYPE').html()

I'm starting to think that it wont work.  I have also tried many other variations of the above.
LVL 2
tahula2Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ram_0218Commented:
$('span#P140_DUTY_TYPE').val()
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Services

From novice to tech pro — start learning today.