Once in a preview state, incorporate drag and drop functionality for sorting of the images and be able to drop an Image on a trash can for deletion of the Image from the preview.
Any OnSubmit needs to stay on the same page to allow for additional uploads or sorting until the User presses a separate "Process/Save" button.
A "Preview" button should :
1) Accept a directory path parameter and create the directory path if it does not exist.
2) Re-size the Image to a given width/height.
3) Use move_upload_files() to safely move the image to the server. i.e. move_uploaded_file($_FILES["userfile"]["tmp_name"], $_FILES["userfile"]["name"])
The drag and drop capability should allow the image to be moved to a different cell then dropped in place. Preview button will load cell 1 first, then cell 2, then cell 3, etc. If Image 3 is dropped on cell 1, the Image in cell 1 moves to cell 2 and the Image in cell 2 moves to cell 3, etc.
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