Script to customise photos/pictures for canvas printing

I'm requiring a script (possibly Javascript but the functionality is more important than the language) that will allow my customers to upload their photos and customise them before they are on-sent to me for printing. Please refer to the following sites as an example of what I require: [login to view URL] [login to view URL] What I require is: - Option for the customer to choose their canvas size (similar to The Canvas Factory when you press the 'Select Size & Shape' option.) Ideally, these sizes can be added to or removed myself as required. Also, prices to appear depending on the size chosen. - Ability for the customer to upload a photo for customisation. I presume a server is required? Ideally, could you provide information about what sort of server is needed and set up the server for use with the script. - Ability to customise the photo: * zoom or scale photo bigger/smaller * change position of photo within canvas - Options for Wrap Style and show results of choice: * Gallery Wrap * Mirror Image Wrap * Coloured Wrap (with option to choose a colour from a colour spectrum) - Allow customer to add their purchase to the shopping cart of my site (I have an e-commerce site run by [login to view URL]) - Send or allow me access to a scale copy of what the customer has customised so that I can print it exactly as requested As mentioned, I don't really have a preference for what language the script is. The most important thing is that it is light and easy for customers to access from their pc, tablet or phone. If you feel that another language other than JavaScript would be best for the job, please let me know and why you think it would be better.