Photoshop Actions Help
 

I am trying to automate a task I am doing.

I have it set up now to:

Copy selected area
Open New File with selected area dimensions
Paste into area
Save For Web****
Close File
Close File

I am having an issue with the save. I want to save it as an extension of the original filename it came from i.e. trees.jpg -> newfile= trees_cropped.jpg

Because it is a new file I can't figure out how to get it to read from the previous filename.

Any suggestions?