is it possible to make div's work like frames??like if you clik a button another thing/page is loaded to a div without reloading the page??

Yes - but you're going to have to use css
http://www.456bereastreet.com/archiv...v2_fullheight/

LadynRed could this techinque work to show another site from your own for example I have my current site that links to some other sites but I would like for the other sites to be shown in my .content div and keep my current header and nav divs I just today decided to do it with frames so it's interesting to see this article.

but the article is about "width" in css...or may be I'm missing something??I wanted to make it so if you click a button a different page or content load in to a different div on the same page that the button was clicked....)

I think the easiest way to do that is to just have a page layout that you repeat and one "content" div that changes based on the content you want on that site

so the question in how to that without loading the whole layout each time you change the "content"...people with low speed conections will suffer if they have to wait for the graphics to load over and over again ...

so the question in how to that without loading the whole layout each time you change the "content"...people with low speed conections will suffer if they have to wait for the graphics to load over and over again

No, no, you misunderstand the function of HTTP and the browser !

Users will only have to wait for graphics to load the FIRST TIME they visit your site. The browser - all of them - will CACHE all the images to the user's machine. The only images that will have to be loaded from then on are those that are different/new. If the users forces a re-load from the server (ctrl-reload) or hits refresh, then they might have to wait a few seconds for the updated/new images to d/l. This is what CACHING is all about - so you DON"T have to constantly re-download images each time you go to the same page.

The browser DOES NOT call the page/images from the server every time you hit a page unless you've cleared your CACHE/temp internet files or deliberately forced a re-load of the page.

would it not be easiest to use a iframe?

In the case of what blackhawkpowers is suggesting, yes. But only because external content is being called.

The other option is to make external sites load in a new window. I prefer this route since it lets users know that they're on something else without losing the original site, and contrary to published opinion no one has ever complained about the back button not functioning correctly on their browser.