var key = '' ;
var current_url = window.location.host ;

switch (current_url) 
{ 
case "www.msc-yachting.com": 
  key="ABQIAAAAjhZ3NzQdJmSxGRiIK7rRHxRP4J04hZVDZ4PAlnfD1HU7ynXSkBR6MADx_eABSuWBSM0LENCMOc_E2Q"; 
  break;
case "pro.ovh.net": 
  key="ABQIAAAAjhZ3NzQdJmSxGRiIK7rRHxTdBESVhwTaN8Ppx4pbp5C4tj2lIhRQq-IoqZqETtisqpoKwQMROUhpWg"; 
  break;
default: key = ''; 
}

document.write ('<script src="http://maps.google.com/maps?file=api&amp;v=2&amp;key='+key+ '" type="text/javascript"></script>');