Drag from computer onto image area

Heya! I'm working for a client she is into makeup so she has a ton of products with a ton of different colors to choose from. So I have to add each image manually to each option. I was wondering if there is a way to make it so I could drag and drop an image onto the image area such as this



http://www.opencart.com/index.php?route ... on_id=9363 There is this but that's only for the products page id like it to work with the options page.