Acrobat Javascript: How to increase textSize by 1 point

[Luxurynightmares]

I can't figure out a simple script to increase the textSize of a Field by 1 point once mouse is down. 

I know how to write a script to change the textSize but can't figure out how to increase the value of the size by 1.

Any help with this would be greatly appreciated. Thanks!

[Nesa Nurani · Accepted solution]

Use:  += 1

[Luxurynightmares]

Thank you, for your response, im sorry im kind of a newbie, how would I add that to the script?

[Luxurynightmares]

Nevermind, I figured it out!!  THANK YOU!!