[NikolasGrad]

js не надо было править, правильный адрес был

url:'http://lagonskaya.ru/public_htmls/ajax_forms.php',

--------------------
ajax_forms.php

<?php
    include ('/home/cp339125/файл с библиотекой');
    /** 
    *  "файл с библиотекой" - это файл,  где определяются функции getGeoData(), sendSalesForce(), logDebug(),
    *  и переменные $sales_force_oid, $debug, $admin_email, $client_ip
    *   без него работать не будет
    */
		//if required fields does not set then exit
		if( empty($_REQUEST["firstname"]) ||
			empty($_REQUEST["lastname"]) ||
			empty($_REQUEST["company"]) ||			
			empty($_REQUEST["position"]) ||
			empty($_REQUEST["phone_country_code"]) ||
			empty($_REQUEST["phone_part1"]) ||
			empty($_REQUEST["phone_part2"]) ||
			empty($_REQUEST["phone_part3"]) ||
			empty($_REQUEST["phone"]) ||
			empty($_REQUEST["email"])
		)
			throw new AjaxFormsAPI_Exception_InvalidParameter();

		$firstname = $_REQUEST["firstname"];
		$lastname = $_REQUEST["lastname"];
		$company = $_REQUEST["company"];
		$position = $_REQUEST["position"];
		$phoneCountryCode = $_REQUEST['phone_country_code'];
		$phonePart1 = $_REQUEST['phone_part1'];
		$phonePart2 = $_REQUEST['phone_part2'];
		$phonePart3 = $_REQUEST['phone_part3'];
		$phoneExt = $_REQUEST['phone_ext'];		
		$email = $_REQUEST["email"];
		
		$phone = '+' . $phoneCountryCode . '(' . $phonePart1. ')' . $phonePart2 . '-' . $phonePart3 . 'x' . $phoneExt;
		$page_url = $_REQUEST["page_url"];
		$prev_url = $_REQUEST["prev_url"];

		/**
		 * Send data to sales force
		 */
		$post_fields = array(
			"oid" => Config::$sales_force_oid,
			"debug" => Config::$debug,
			"debugEmail" => Config::$admin_email,
			"lead_source" => "Contact Us",
			"first_name" => $firstname,
			"last_name" => $lastname,
			"company" => $company,
			"position" => $position,
			"phone" => $phone,
			"email" => $email
		);

		if($geoip_data = getGeoData($client_ip)){
			$post_fields["city"] = $geoip_data["city"];
		}

		$result = sendSalesForce($post_fields);
		$logger->logDebug(basename(__FILE__) . ": Send data to sales force:\n %s", var_export($result, true));
		
		/**
		 * Save to DB
		 */
		$res = $forms->set(array(
			"firstname" => $firstname,
			"lastname" => $lastname,
			"company" => $company,
			"position" => $position,
			"phone" => $phone,
			"email" => $email,
			"client_ip" => $client_ip,
			"page_url" => $page_url,
			"prev_url" => $prev_url
		));

		$logger->logDebug(basename(__FILE__) . ": Save data to DB : %s", var_export($res, true));

		$_result=json_encode(array(
			'code' => AJAX_FORMS_ERROR_CODE_SUCCESS,
			'message' => false,
			'redirect' => false
		));
		if(isset($_REQUEST['callback']))$_result="{$_REQUEST['callback']}($_result)";
		die($_result);

		break;
?>