automatically Checkbox Checked if filename contains specific word (adobe dc javascript)

Hi,

I am hoping someone maybe able to help. I have been looking through but nothing is specifically working for what I need.

I basically have a pdf with some document level javascript but would like to add some more.

Basically there are 5 checkbox each saying a deptartment like 'Finance'

I was wondering if I could get the checkbox to check when the document is automatically opened and it looks for specific string that contains (so it might have other text around it) "Finance"

So for example Filename: 'Document Invoice - Finance - 1234.pdf'

Ideally because the document title includes finance it would automatically check the textbox called 'Finance' on the PDF form? If finance wasn't there it wouldn't check the box at all

Any help would be much appreciated.

Many thanks,