Calculating total filesize in SWFUpload Queue

Is there anyway I can get the total size of all files queued from swfupload right after the user开发者_StackOverflow社区 selected the files? I need to be able to display something like "0 of 184MB" when the upload is about to start.

Thanks!

---

I ended up only showing progress per file basis (1 / 10 files uploaded, etc...)