jQuery.validator.addMethod("valeurinitiale", function(value, element, params) { 
    return this.optional(element) || value.toLowerCase()!=params.toLowerCase(); 
}, jQuery.validator.format("Veuillez saisir le champ {0} ")); 

$('#formulaireContact').validate({
        submitHandler: function(form) {
            // do other stuff for a valid form
            if ($(form).valid())
            {
                $(form).ajaxSubmit(function(responseText, statusText) {
                    if (responseText!="")
                        alert('probleme'+responseText);
                    else {
                        $(form).clearForm();
                        jQuery.facebox(function() {
                            jQuery.get('resultat.php', function(data) {
                                jQuery.facebox( data )
                            })
                        })
                    }
                })
            }

        //form.submit();
        },
        rules: {
            nom: {
                required: true
                
            },
            ville: {
                required: true

            },
            email: {
                required: true,
                email:true
            },
            captcha: {
                required: true,
                remote: {
                    url: "php/verifiecaptcha1.php",
                    type: "get"
                }
            }
        },

        messages:	 {
            captcha: 		{
                required: "Entrer les caractères comme sur l'image au-dessus:",
                remote: jQuery.format("le code actuel est incorrect.")
            }
        }
		
    });