How to create Multiple images with hyperlinks

I have a psd image with me. This image has been c开发者_StackOverflow中文版reated combining multiple images. I want that each of this multiple images must have a seperate alt tag and a hyperlink. When the user clicks on it, he/she should be taken to the that url.

How can I do it. Please suggest me all options like open source or online tools etc.

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Take a look here: Medialab's SiteGrinder. This is a PS plugin which transforms your PSD into a working webpage, I use it for prototyping and to figure out px distances and such, there are services out there too, but have a look at this tutorial too.

Hope they help.