Methodologies for serving a static header

[dmsims]

So a common? issue - a website with a common header (logo, menu, contact details etc) to be served across many pages. I t make sense to have a single instance.

Now in ASP.net you can just use a masterpage but if it's only an html (and PHP) site what method would you use: Javascript, PHP or ?

 

[dmsims]

Thanks for the suggestions - it's a really old enthusiast site that I am revamping - had forgotten about SSI's