Reset a form button confirmation pop up window not working

I have reset form buttons on most of my forms and am trying to add a confirmation pop up that asks if they are sure they want to reset the form.

By clicking cancel or no - the form should still contain the data that was in it, if they click yes it should erase all the form fields.

On the action tab of the button properties, I have added the action to run a javascript - and tried numerous scripts found online, moved it above the reset a form action and below.  Most all will pop up, but regardless of what is pressed, the form clears out.

I want the option to NOT clear the form after it has been pressed but giving the "second chance" warning pop up and I wouldn't mind dictating what the message says - but that isn't near as important as the action working.