function newsletter() {

//var reg = new RegExp('^[a-z0-9!#$%&*+-=?^_`{|}~]+(\.[a-z0-9!#$%&*+-=?^_`{|}~]+)*@([-a-z0-9]+\.)+([a-z]{2,3}|info|arpa|aero|coop|name|museum)$', 'i');
//var reg = new RegExp('^[a-z0-9]+([_|\.|-]{1}[a-z0-9]+)*@[a-z0-9]+([_|\.|\-]*{1}[a-z0-9]+)*[\.]{1}[a-z]{2,6}$','i');
var reg = /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,3}$/;
	if (document.getElementById("mail")!=null){
		var mail=document.getElementById("mail").value;
	}
	
	
	if(reg.test(mail))
 {
var url="http://livefoot.fr/newsletter.php?email="+mail;
	var w=window.open(url,'newsletter','toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=no,location=0,top=0,left=0,width=660,height=600');
	return(true);
	
	}
	 else
 {
  alert('Entrez une adresse e-mail valide!!');
  return(false);
 }
}