function checkMail() {

	var isValid = true;
	var msg = "";

	if (document.formMail.subject.value == "") {
		msg = "Veuillez saisir un sujet";
		document.formMail.subject.focus();
		isValid = false;
	} else if (document.formMail.content.value == "") {
		msg = "Veuillez saisir un contenu";
		document.formMail.content.focus();
		isValid = false;
	}

	if (!isValid) {
		$("#message").html(msg);
		$('#message').fadeIn(200).delay(3000).fadeOut(200);
	}else{
		$("#message").fadeOut('slow');
	}
	
	
	return isValid;

}

function getClientWidth() {
  return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientWidth:document.body.clientWidth;
}