jQuery Plugin to Assist File Downloads – jDownload
jDownload - is a jQuery plugin built to assist file downloads and make the download experience more informative and user friendly.
jDownload is built on jQuery UI and displays a UI dialog with file information (file name, type and size) before asking the user to confirm or cancel the download.
jDownload comes with many useful options. You can specify width and height of dialog, specify is dialog is to be modal or not, specify a function to be called when jDownload is initiated, finished, canceled, and more.
I don’t see how this plugin could be useful for some site, after testing I found it’s very annoying to confirm twice my download, once in plugin, and once in browser.