How to use jquery4php

<?php
include_once 'path/to/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryAutoLoader.php';
YsJQueryAutoLoader::register();
?>
<h3>Basic Usage
<input type="button" value="Click me" id="btnExample">
<?php
echo
YsJQuery::newInstance()
->onClick()
->in('#btnExample')
->execute(
'alert("Hello World")'
)
?>