function checkFormContact(form)
{
	var retour ="";
	if (form.pseudo.value =="")
		retour += "Pseudo manquant !\n";
	if (form.email.value !="")
		if (!isMail(form.email.value))
			retour += "Adresse email incorrecte !\n";
	if (form.aContacter.value=="0")
		retour += "Destinataire manquant !\n";
	if (form.message.value=="")
		retour += "Message manquant !\n";
	if (form.captcha.value!=form.resultatCaptcha.value)
		retour += "Resultat du calcul incorrect, rectifiez !\n";	
	if(retour!="")
		alert(retour);
	else
		form.submit(); 
}