editable websites

How to create a web site which is editable by the customer ,like the customer can change the background color ,Contents and images ,(look and feel of the page can be editable by the customer by themself)
how to proceed can anyone help ???

There are a couple of options here and it all depends on how much flexibility you want.
You could provide a way for users to personalize the site (like you can with some portal server products), or you could always use something like WebDAV that allows the contents of the website to be edited without having access to the server on which the content is stored.
Simon

I want a website whose contents can be chnaged by users globally ,but the thing is that the users all over the globe would not be tecnical ,so i want to build a site accordingly so thta they can chnage the content as well as the color and images according to ther needs ,