I am trying to use the upload sample here:

http://www.sanwebe.com/2012/05/ajax-image-upload-and-resize-with-jquery-and-php

It works perfect on my localhost but when I uploaded it to my web host it does nothing and I am getting the following in the console:

1. Uncaught TypeError: undefined is not a function mypage:203
1. (anonymous function) mypage:203
2. jQuery.event.dispatch jquery-1.9.1.js:3074
3. elemData.handle jquery-1.9.1.js:2750
4. jQuery.event.trigger jquery-1.9.1.js:2986
5. (anonymous function) jquery-1.9.1.js:3677
6. jQuery.extend.each jquery-1.9.1.js:648
7. jQuery.fn.jQuery.each jquery-1.9.1.js:270
8. jQuery.fn.extend.trigger jquery-1.9.1.js:3676
9. jQuery.fn.(anonymous function) jquery-1.9.1.js:7403
10. (anonymous function) mypage:192
11. jQuery.event.dispatch jquery-1.9.1.js:3074
12. elemData.handle jquery-1.9.1.js:2750

what's the reason please?