XMLHTTP AJAX abort(), jQuery abort()

I was looking if there was a way to stop an already running AJAX request, like we can stop an http request using browser stop button. Yes there is a way to stop it using abort() method of the XMLHttpRequest object . More details about this here http://www.quirksmode.org/blog/archives/2005/09/xmlhttp_notes_a_1.html

jQuery AJAX multipart form-data file upload

jQuery Form plugin provides AJAX form upload capabilities . Since XMLHttpRequest does not support upload , the plugin does it neatly using hidden iframe

jQuery Ajax History/Back Button/Bookmark plugin

If you want to support Back buttons for Ajax or want to give bookmark links for Ajax content, I suggest using jQuery Address plugin