Ajax Upload Script uses XHR for uploading multiple files with progress-bar in FF3.6+, Safari4+, Chrome and falls back to hidden iframe based upload in other browsers, providing good user experience everywhere.
Features:
> multiple file select, progress-bar in FF, Chrome, Safari
> drag-and-drop file select in FF, Chrome
> uploads are cancellable
> no external dependencies
> doesn’t use Flash
> fully working with https
> keyboard support in FF, Chrome, Safari
> tested in IE7,8; Firefox 3,3.6,4; Safari4,5; Chrome; Opera10.60;