Resetting an Image Field

Hello, I have a form with multiple image fields and I want to be able to reset each image field individually. I currently have a 'reset image' button below each image field. However, when I click the reset image button, it resets the entire form and not the specific image field. I have the following JavaScript for each button (obviously the Image name is different for each image field):
 
xfa.host.resetData("xfa.F.P1.Image");
 
Please help! I have spent hours and hours trying to figure it out. Thanks in advance.