Upload progress in browser

Hi,I read all related psot in this forum and searched the web for 2 days, now I have to ask. I hav a form with an “File Upload”-Field working fine. But customer always complains that upload is only working sometimes. I found that after he saved (and started the upload so) he closed the window to fast and the upload was killed. With the Firefox it’s not such a problem, there is the hourglass shown at last until upload is finished, but not in the IE (which is customer only using). So my only chance is javascript, and I don’t know much of it. I found how to change the mouse to “wait” but can not change it back as there is no event like “onuploadfinish”. But when I look at either browser, during the upload the “windows flag” or “firefox circle” (I don’t know how to call that) are moving. Isn’t their a way I could use that somehow? As event?

Thanks for your ideas

Oliver