function sendami(){
var params = Form.serialize($('formami'));
new Ajax.Updater('envami', 'envoiamiok.php', {asynchronous:true, parameters:params});
}

function sendnews(){
var params = Form.serialize($('newsletterform'));
new Ajax.Updater('newslett', 'submitnewsletter.php', {asynchronous:true, parameters:params});
}

function sendsondage(){
var params = Form.serialize($('sondage'));
new Ajax.Updater('sond', 'sondage.php', {asynchronous:true, parameters:params});
}