I want to download a image file (jpeg image) to the user files system when user selects a photo and clicks a button. So far I searched and found [this link](http://stuartk.com/jszip/) and also [this](https://github.com/dcneiner/Downloadify) 

I saw in one blog that downloadify when used with jszip can enable this feature but it didn't specify any farther on this. Does any one know how to download the images. I have the links to the images and i just want the user to download it on his system rather than again query the server.

Can anyone provide me with an example please.