function checkMail() {
	var mail1 = document.getElementById('mail');
	var mail2 = document.getElementById('mail2');
	var pass1 = document.getElementById('password');
	var pass2 = document.getElementById('password2');	

	var resp =true;
	
	if(mail1.value!=mail2.value) { resp=false; alert('Les deux adresses mail ne correspondent pas'); }
	if(pass1.value!=pass2.value) { resp=false; alert('Les deux mots de passe ne correspondent pas'); }
	
	return resp;
}