$(document).ready(function() {
        $("#form_type").change(function() {
		var typeOfSite = $("#form_type :selected").val(),
			formOftype = $("#submitbutton");
			formOftype.load("http://nevafinance.ru/mainform.php",{option:typeOfSite});
			creditTime = $("#cred_time");
                        creditTime.load("credittime.php",{option:typeOfSite});
	});
 $('#form_type').change();
})