http://valums.com/ajax-upload/

Ajax Upload; A file upload script with progress-bar, drag-and-drop.

This plugin 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.

Demo

To upload a file, click on the button below. Drag-and-drop is supported in FF, Chrome. Progress-bar is supported in FF3.6+, Chrome6+, Safari4+

本文转自cnn23711151CTO博客，原文链接： http://blog.51cto.com/cnn237111/505909，如需转载请自行联系原作者