how to insert multiple image in pdf form + drag and drop image to pdf form

Let's say you have 10 button fields called "Image1", "Image2", etc., and you want to prompt the user to insert an image field into all of them, one after the other. You can use this code to do it (remove the alert window if you don't want it to appear before each file selection):

for (var i=1; i<=10; i++) {
    app.alert("Select the image for field #"+i+":",3);
    this.getField("Image"+i).buttonImportIcon();
}