Ciao justnet,
codice:
<script language="JavaScript" > 
<!-- Begin 
ogg = "?Subject=Webmaster" 
text = "<img border=0 src=tuaimmagine.jpg>" 
user = "nome"; 
site = "tiscali.it"; 
document.write('<a style=\"color: #808080\" href=\"mailto:' + user + '@' + site + ogg + '\">'); 
document.write(text +'</a>'); 
// End --> 
</script>