function emailCheck (EM) {
	var RegExp_Mail = new RegExp("^[0-9a-z]([-_.]?[0-9a-z])*@[0-9a-z]([-.]?[0-9a-z])*\\.[a-z]{2,3}$");
	return RegExp_Mail.test(EM);
}

function verif_contact(contact){
	
	var fin = true;
	var Blanc = "#FFFFFF"; var Rouge = "#FaD8D8"; var Jaune = "#FFFFCC";

	if(fin==true){
		if (document.contact.email.value.length<4 || !emailCheck(document.contact.email.value)){
			document.contact.email.style.backgroundColor = Jaune;
			document.contact.email.focus();
			fin = false;
		}else{
			document.contact.email.style.backgroundColor = Blanc;
		}
	}

	if(fin==true){
		if (document.contact.message.value.length<5){
			document.contact.message.style.backgroundColor = Jaune;
			document.contact.message.focus();
			fin = false;
		}else{
			document.contact.message.style.backgroundColor = Blanc;
		}
	}

	return fin;
}