var REG_MAIL = /^[\w-\.]{2,}@[\w-]{1,}\./;

function validForm() {
	if(!REG_MAIL.test(document.formulaire.email.value)) 
	{
		alert("Le champ e-mail n'est pas rempli correctement.");
		document.formulaire.email.focus();
		return false;
	}
  	return true;
}


function popupcentree(titre,page) {
	var top=(screen.height-650)/2;
	var left=(screen.width-660)/2;
	window.open(page,"","top="+top+",left="+left+",width="+660+",height="+650+","+"menubar=no,scrollbars=no,statusbar=no");
}