How do I update only half the page with HTML/CSS when clicking a link? Keep slide show in Memory.?

Without using javascript you're limited to using frames.

Don't.

Go visit jQuery.com and read the examples. It's very simple to use with examples for everything. If you check the plugins, there's a simple image scroller module that will allow you to rotate through images like you want.

As for the dynamic update of the bottom content, this isn't a very good design. If a user does not have javascript enabled your site will not work for them. If you want to continue to pursue this avenue, just wrap the bottom content in a <div id="maincontent"> </div> and use jquery to handle yoru click events on links, do your ajax requests (careful, IE caches aggressively so you might want to use POST rather than GET to avoid this unless your content doesn't change). The ajax handlers will will request the content for the link clicked, return false to keep the browser from handling the click event as a traditional full-page submit and then render the new content in the div tag.

It sounds harder than it is technically but to get working correctly and cleanly is going to be rough. It sounds like you might not have enough experience for this. If you're really set on this design, look at jQuery, read the docs, search the plugins, etc.

Good luck.

your pc takes somewhat the easily reminiscence (RAM) interior your pc and allocates it for habitual initiatives. it is digital reminiscence. i'm getting an identical message once I play Sims or mmorg video games. you could advance the quantity of reminiscence this is allotted as digital reminiscence, basically i do no longer understand a thank you to try this so i'm going to no longer be a great form of help there.... This relatively is basically a quick term answer nonetheless. you will possibly be able to desire to purchase a (couple of) new stick(s) of reminiscence. :( so do I.