function MailAsk() {
    var answer = confirm("Open mail client?")
    if(answer){
          javascript:window.location="mai"+"lto:"+"even"+"-"+"sa"+"@"+"wanadoo"+"."+ "fr";
    }

}         
function MailSimple() {
    javascript:window.location="mai"+"lto:"+"even"+"-"+"sa"+"@"+"wanadoo"+"."+ "fr";
}