Hello,

I am using a radio button to choose yes or no:

I have a request that:

 
if No: I need to upload a front and back of a file (2 files) ==> 2 files will be sent
if Yes: I need to upload only one file (only front) ==> only 1 will be sent
 

So as you can understand, I have 2 attachement categories: frontX and backX:
  - the frontX will be used in both yes or no cases; if yes I will upload a file in frontX and if no I will upload another one.
  - the backX will be used only in case no; if I click on yes, it should be reset (to not submit it)

All in all, whenever I click on yes or no, I need to remove what I uploaded in frontX and backX.
 

my question: how to remove the attachement uploaded when I click on yes or no, So I will not confuse the needed attachement that will be sent.

Thanks a lot in advance for your help!