language change selection on a website by one click

I m not sure which forum to request this.

I am currently building a simple website for a client. I wanted to implementing a 'button' that when clicked, is able to change the language layout for the whole website.

I wanted to avoid duplicating the whole layout and prepare each page in different langauge layout.

Thank you.

The answer is sort of "no".

You will actually need to have content written for each language as in
separate pages, but ...

If you use CSS, this will become rather easy, since each page really has
only the content. The style sheet will control the look and layout, making
each page look the same even though the language is different.

This is the main point behind http://www.csszengarden.com

The very same content on every example, but the .css (CSS file) alters
the look and layout. So you would only be duplicating the HTML part,
not the CSS part.