How to make a wordpress website multilingual?

I want my WordPress website to have multi language support, on clicking a drop down it will automatically convert the content into related language,without using of any plugin…

I am using this code :


		<div id="google_translate_element"></div>
 <script type="text/javascript">
function googleTranslateElementInit() {
  new google.translate.TranslateElement({pageLanguage: 'en', layout: google.translate.TranslateElement.InlineLayout.SIMPLE}, 'google_translate_element');

<script type="text/javascript" src="//"></script>