function valider(){
  frm=document.forms['frmSaisie'];
  if(frm.elements['prenom'].value != "") {
    return true;
  }
  else {
    alert("Saisissez le prénom");
    return false;
  }
}
function isEMailAddr(elem) {
	var str = elem.value;
    var re = /^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/;
    if (!str.match(re)) {
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } else {
        return true;
    }
}

function add(f){
	if(!isNotEmpty(f.elements["email"])){
		if(isEMailAddr(f.elements["email"])){
			openmypage();
		}else{
			alert('adresse e-mail invalide');
		}
	}
}
function isNotEmpty(elem) {
	var str = elem.value;
    var re = /.+/;
    if(!str.match(re)) {
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } 
}
function focusElement(formName, elemName) {
    var elem = document.forms[formName].elements[elemName];
    elem.focus();
    elem.select();
}
function openmypage(){
	email = document.newsletter.email.value;
	email=email.replace('@','||');
	x = testerRadio(document.newsletter.inscription);
	var top=(screen.height-210)/2;
	var left=(screen.width-452)/2;
	param = 'pop_newsletter.cfm?email=' + email + '&inscription=' + x;
	if(x == 1){ window.open(param,'','scrollbars=no,top='+top+', left='+left+',width=452,height=210'); }
	else{ window.open(param,'','scrollbars=no,top='+top+', left='+left+',width=452,height=210'); }
	}

function testerRadio(radio) {
  for (var i=0; i<radio.length;i++) {
	 if (radio[i].checked) {
		return radio[i].value;
	 }
  }
}