Very useful indeed, however you can simplify the ShowMore() function a little

function showMore(whichid) {
if (ie5||ns6) { var showid = document.getElementById(whichid); }
if (showid.style.display == 'none') {
showid.style.display = '';
} else {
showid.style.display='none';
}
}

You can use a one-line conditional instead of an if/then/else statement. Observe...

function showMore(whichid) {
if (ie5||ns6) { var showid = document.getElementById(whichid); }
showid.style.display = (show.id.style.display == 'none') ? '' : 'none';
}

That states that if showid's style is equal to not be shown, allow it to be shown.

Simplify it further. Do we need to know if its ie5 or ns6? No. It just has to support "document.getElementById"

<script type="text/Javascript">
function showMore(whichid) {
if(!document.getElementById)
return false;
var showid = document.getElementById(whichid);
showid.style.display = (showid.style.display == "none"?"":"none");
}
</script>

Personally, I'd find it easier to pass the element to be changed to the function via a parameter.

<script type="text/Javascript">
function showMore(ext){
if(ext)
ext.style.display = (ext.style.display == "none"?"":"none");
}
</script>

Just my two cents. Also, its good considering you're still learning.

Good and simple script for a newbie coder like me