function OAS_AD(pos)
{
	if(pos=='Top')				var url = 'http://pub.affiliation-voyage.com/crea/ma_assu01_it.jpg';
	else if (pos == 'Middle')	var url = 'http://pub.affiliation-voyage.com/crea/ca01_assu_it.jpg';
	
	document.write('<IMG SRC="' + url + '" border=0 />');
}