New small window 'about this site'

[binto]

Someone kindly help me with some code on how to open a new small window for a description of my site.
I want to add a link on the front page 'about this site' .
This link will open a small explorer window with a description and how to use our site.

Thank You
Binto

[dody]

I use this code in admin cp to open small window to view category's hierarchy:

<script language="JavaScript">
<!--
function MM_openBrWindow(theURL,winName,features) { //v2.0
window.open(theURL,winName,features);
}
//-->
</script>


On text link:
<a href="#" target=menu onclick="MM_openBrWindow('cat_view_hierarchy.php', 'hierarchy','status=yes,menubar=yes,width=400,heig ht=400')">View Hierarchy</a>