How to make website not load every page over

[scdsuccess]

I want to make my websites static. Meaning, I want main frame of the website to be shown at all times, only the content must change when clicked on a link.

Currently, if you click on a link, everything loads again. That is the effect that I don't want. If they click on the link, it should remain onscreen, only the content / text must change.

Is it possible NO and if, how do I do that?