How to pull a field value into the Save As dialog box

I have very limited script skills, but I was able to find how to create a button on my LiveCycle ES3 form to open the Save As dialog box. I would like to take this one step further and have the Save As file name be populated with values from a couple of fields within the form, like the date and ID number, so that the user only needs to press the save button. Is it possible to create a script in LC for that? If so, any suggestions on how?

Thanks!