// the navigator object stores the browser ...

<script type="text/javascript">
document.write("Your browser is " + navigator.appName);
script>

// if you want a line break and want to indent your html code
// but the browser makes problems with the whitespace
// make the whitespace a comment

//example

<div id="topimages">
        <image class="left" src="image/left.jpg"><image class="left" src="image/mid.jpg"><image class="right" src="image/right.jpg">
div>

// center horizontally
// text-align:center for internet explorer, margin:auto for firefox

<div style="text-align:center">
  <div style="margin:auto">the textdiv>
</div>

// center vertically with table

<table><tr><td valign="middle">the texttd></tr>table>

// or without table (only firefox, .. / not in internet explorer <=6!)

<div style="display:table-cell;        vertical-align: middle">the textdiv>

//add website to geourl
//long desciption on http://geourl.org/add.html

#1 get coordinates

#2 add meta tags to head
<meta name="ICBM" content="XXX.XXXXX, YYY.YYYYY">
<meta name="DC.title" content="THE NAME OF YOUR SITE">

#3 ping http://geourl.org/ping/