Drawing line with kineticj.s

HTML

<script src="http://d3lp1msu2r81bx.cloudfront.net/kjs/js/lib/kinetic-v4.7.4.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<!DOCTYPE html>
<html>
	<head>
		<title>highlight</title>
		
		<script
		  
    		      
		    
		  
		 src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
	
		 <link href="main.css" type="text/css"  rel="stylesheet"/>
		 
	</head>
  <button onclick="myFunction">x</button>
  <script>
    function myFunction() {
       altert('ff');
        
}		    

  </script>
	<body id='dolor'>
<p >
    Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
</p>
<p>
    Quisque bibendum sem ut lacus. Integer dolor ullamcorper libero.
    Aliquam rhoncus eros at augue. Suspendisse vitae mauris.
</p>
 <script type="text/javascript" src="main.js" charset="utf-8"></script>
	</body>
</html>

CSS

.myClass{

background-color:red;
}

JavaScript

$( document ).ready(function() {
	
	function hiliter(word, element) {
		var rgxp = new RegExp("\\b" + word + "\\b" , 'gi'); // g modifier for global and i for case insensitive 
		var repl = '<span class="myClass">' + word + '</span>';
		element.innerHTML = element.innerHTML.replace(rgxp, repl);
			
			};

	hiliter('xx', document.getElementById('dolor'));
});