Upload large file on doSubmit in javascript

Hi all,
I'm currently having some problems uploading large files using a custom Upload button (button calls doSubmit from javascript).
When using an Upload button with unconditional branch to the same page (no js) it works perfectly. Now I have to use my own Upload button that calls some javascript and AJAX and then Submit the page (with doSubmit); in this case I can only upload very small files (< 100k) ...
I understand the mechanism of the file browse and its uploading to the table WWV_FLOW_FILE_OBJECTS, but I cannot figure out why my configuration does not work when it does stricly the same but from js ...
Someone experienced the same issue ? How to submit the upload in javascript side with doSubmit ??
Best regards,
Othman

Hi Othman,
did you find a solution for this. I'm facing nearly the same problem, I'm calling a popup, where the user can upload up to 5 files. Then on clicking a button, javascript is called, that's calling the doSubmit and some others things and at the end the popup is closed.
Sometimes the upload of 5 files is working, sometimes only 1 file is possible (obvisiously it's depending on the filesize).
function addFile()
doSubmit('FILE');
opener.actualizeProject('TAB4');
close();
}chrissy

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