var domain;
var id;

function nospam(domain, id) {
//location.href = "mailto:" + id + "@" + domain + "?subject=pp.com [ne pas modifier l'objet - filtre anti-spam]";
location.href = "mailto:" + id + "@" + domain;
}
//< a href="javascript:nospam('domaine.com', 'nom')">contact</a>