Ftp upload with progress bar

I want to use the built-in ftp class to upload files to an ftp-server. It's important that there is a progress bar during the uploading process. Any suggestions?

Try this
https://api.jqueryui.com/progressbar/

and this,
http://www.jqueryrain.com/demo/jquery-progress-bar/

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Building the progress bar itself is not the real problem. Most progress bars accept a percentage as a parameter to show it's status.
Question is: how can I determine the percentage of upload complete during ftp upload?

try reading this article.
http://www.sitepoint.com/tracking-upload...avascript/

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