[xwiki-devs] Script that is run when users want to attach files to an XWiki page ?

Hello, I have been looking out for the code /script that handles the UI and the functionality of the UI for attachments section of an Xwiki page. These are the places I have looked at: 1) com.xpn.xwiki.web.AttachAction.java 2) com.xpn.xwiki.web.UploadAction.java 3) Fileupload plugin 4) XWiki Enterprise\webapps\xwiki\wiki_editor\plugins\attachments.js 5) HTML source code of any XWiki page ! the reason I am looking for it, is to try to see how I can modify the code to allow *selection of multiple files for upload at one time* ! In our application, users ight be required to upload more than 10 files at a time and we do not want them to browse to the file system for every file! If someone can point out anything that might help, it would be great. Thanks