I'm using EO Ajax toolkits for upload files, the file is uploaded to server. when user click save then it will update the database for what been uploaded or changed. Now i need a clean up process that when user uploaded a file to server, but then close his/her browser before click the save button. in this case how should i programe so that the file user just uploaded is deleted, because it's now useless and not assosiated with any database.

thanks.

1. maybe i should upload all files to a temp folder, only when user click saver the file can be moved to target folder, at each session end the temp folder is get deleted.