FormsClassParser.addRules({
	add_one_year : {
		onblur : function () {
			if (!date_format(this) || !this.className.match(/add_one_year::([^: ]+)/)) {
				return true;
			}
			var elem = this.form[RegExp.$1];
			if (!elem.value) {
				var res = this.value.match(/(\d\d)\/(\d\d)\/(\d\d\d\d)/);
				elem.value = res[1] + '/' + res[2] + '/' + (Number(res[3]) + 1);
			}
		}
	}
});