Error in simple javascript search web-part.

Question

Hi everybody. I need a help. I want to write simple sharepoint farm solution web-part (not App) with javascript for search like describe
http://www.dotnetmafia.com/blogs/dotnettipoftheday/archive/2013/04/18/how-to-query-search-with-the-sharepoint-2013-javascript-client-object-model.aspx But I get error. My visual web-part code:
<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="VisualWebPart1UserControl.ascx.cs" Inherits="tester.VisualWebPart1.VisualWebPart1UserControl" %>
<script src="~/_layouts/15/sp.search.js"></script>
<script src="~/_layouts/15/RDBranding/js/jquery-1.7.2.min.js"></script>
<script type="text/javascript">
var results;
var context;
_spBodyOnLoadFunctionNames.push("tester");
function tester() {
$("#searchButton").click(function () {
context = SP.ClientContext.get_current();
var keywordQuery = new Microsoft.SharePoint.Client.Search.Query.KeywordQuery(context);
keywordQuery.set_queryText($("#searchTextBox").val());
var searchExecutor = new Microsoft.SharePoint.Client.Search.Query.SearchExecutor(context);
results = searchExecutor.executeQuery(keywordQuery);
context.executeQueryAsync(onQuerySuccess, onQueryFail);
function onQuerySuccess() {
$("#resultsDiv").append('<table>');
$.each(results.m_value.ResultTables[0].ResultRows, function () {
$("#resultsDiv").append('<tr>');
$("#resultsDiv").append('<td>' + this.Title + '</td>');
$("#resultsDiv").append('<td>' + this.Author + '</td>');
$("#resultsDiv").append('<td>' + this.Write + '</td>');
$("#resultsDiv").append('<td>' + this.Path + '</td>');
$("#resultsDiv").append('</tr>');
$("#resultsDiv").append('</table>');
function onQueryFail(sender, args) {
alert('Query failed. Error:' + args.get_message());
</script>
<div>
<label for="searchTextBox">Search: </label>
<input id="searchTextBox" type="text" />
<input id="searchButton" type="button" value="Search" />
</div>
<div id="resultsDiv">
</div>
And my error in browser console after button click:
 Any idea? Why?
Aleksandr Shramko

Answer 1

I resolve my problem using next code
$(document).ready(function () {
Initialise();
function Initialise() {
var scriptBase = _spPageContextInfo.webAbsoluteUrl + "/" + _spPageContextInfo.layoutsUrl + "/";
$.getScript(scriptBase + "sp.runtime.js", function () {
$.getScript(scriptBase + "sp.js", function () {
$.getScript(scriptBase + "sp.search.js", tester);
Aleksandr Shramko