Dynamically adding images to the Image Slideshow

I'm new to javascript and trying make a image slide show using jquery plug-in with the help of this tutorial which is located here:

http://tutorialzine.com/2010/09/html5-canvas-slideshow-jquery/

What I need to do is to click the and call an open file di开发者_StackOverflow社区alog where i can make multiple selection of images and then add them into slideshow.

How could i manage to get this sorted?

For multiple files upload you should use Uploadify.