// 邮政编码验证   
jQuery.validator.addMethod("isFax", function(value, element) {   
    var fax = /^[-?0-9]{11,13}$/;
    return this.optional(element) || (fax.test(value));
}, "请正确填写您的传真");

jQuery.validator.addMethod("isTelephone", function(value, element) {   
    var telephone = /^[-?0-9]{11,13}$/;
    return this.optional(element) || (telephone.test(value));
}, "请正确填写您的座机");

jQuery.validator.addMethod("isYingye", function(value, element) {   
    var yingye = /^[A-Za-z0-9]+$/;
    return this.optional(element) || (yingye.test(value));
}, "请填写正确的营业执照号。");