I'm having trouble understanding the mechanics of how df is storing and retrieving sessions or cookies.  I'm building a form where someone selects a class from a combo list.  I've set the value on one option of that list to a specific number representing the price of the class.  I've checked the advance option to pass that value to the session (and have also tried cookies).  When that particular class is selected (there's only one that does this right now), it fires a question event that opens up/makes visible/un-hides additional elements, including a text field where I want to show the cost of that class.  

On the cost field, I've checked the get value from session in the advanced options but am not getting the value from the combo list.  I've tried this with both sessions and cookies and don't get anything either way - but using the querystring to pass the value when the form loads works - so I figure I'm doing something wrong or have misunderstood the process.  

Assuming that the scenario I describe is workable, do I need to set the value of the field where I want to see the stored value to something specific or ?

Thanks in advance.

Yes - I was manually typing it in for one item but for the other, I'm accessing the form from another page so I added the DF module, created a link with a hidden field with the amount I wanted, clicked on the link and Bob's Your Uncle - worked. Thanks so much.

I'd still like to be able to have the ability to populate a field depending on the option selected.  Would it work if I wrote a function to get the value from the selection (using the guid and the extension indicating the item) and then re-write into another field - something like getElementById([guid for price field]).value = getElementById([guid for selected element_X).value' ?