function estmail(email) {
		if (email.value.indexOf(" ") + "" == "-1" && email.value.indexOf("@") + "" != "-1"
				&& (email.value.lastIndexOf(".") > email.value.indexOf("@")) && email.value != "") {
			return true;
		} else {
			alert("Veuillez indiquer votre adresse de courriel, merci.");
			return false;
		}
	}
	function efface(form,name) {
		eval ( that = window.document[form][name]);
		if ( name == 'email' && that.value == 'votre courriel' ) {
			that.value = '';
		} else {
			return false;
		}
	}