Displaying text in another frame on mouseover

I am putting together a website for a photographer friend, and he would like a description (one or two sentences) displayed when the mouse moves over a thumbnail. He wants this description to appear in the bottom left corner of the screen with the thumbnails to the right of this. As there will be about 20+ thumbnails per category, i've had to make this a separate frame. So, my question is:

How can I display text is a different frame when the mouse passes over an image?

I can do it in the same frame using something like

<SCRIPT LANGUAGE = "JavaScript">
/* Show an object */
function showObject(object) {
object.visibility = VISIBLE;
}
/* Hide an object */
function hideObject(object) {
object.visibility = HIDDEN;
}
</SCRIPT>

and later on

<a href= ... onmouseover="showObject(desc1)"
onmouseout="hideObject(desc1)"> ... </a>

(That's using an IE style class for the desc, Navigator I deal with as

/* Simple version detection */
var isNS = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 4);

/* They can be used in place
of hidden and visible because on occasion Navigator has problems with the two */
var HIDDEN = (isNS) ? 'hide' : 'hidden';
var VISIBLE = (isNS) ? 'show' : 'visible';

/* Create shortcut variables for different absolutely positioned elements */
var desc1 = (isNS) ? document.desc1 : document.all.desc1.style;
etc.
)

Is there a simple variation on these themes that I can use, or do I need a total re-write?


------------------
J K-C

this worked for me:

suppose the frame that you wanted to load s called "one" and the html page you want to load into that frame is called one.html.

onMouseOver="parent.one.location='one.html'"

Unfortunately, that will require you to have a page for each thumbnail, although this could be overcome using a large page with an anchored area for each thumbnail:

onMouseOver="top.frames[1].location.href='page.htm#picnum'"

I've been thinking about this though, and I'm wondering if you could use document.write? I'm not though, JavaScript security might prevent it. Try this:

onMouseOver="top.frames[1].document.write('Text to be displayed here'); return true"

adam