How should I make a Javascript and Ruby based order form that sends info and uploaded images to an email address?

Question

I am planning on making an order form that has

• text fields (to gather submitted text based information like names, emails, messages)
• link fields (to gather submitted links)
• upload buttons (to gather images from a user's hard drive)

I assume I will be using Javascript and Ruby for this but I have a few questions.

1. how would I activate the file browser pop up window when a user clicks the upload button?
2. how would I make it so the files that the user selects off their hard drive get places as attachments into the email that will be sent to the company?
3. how can i make the links that a customer sends be recognized as links in the email so that when the company receives the email they can just click on the link and it goes right to the web page?