<html> 
  <head> 
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script> 
    <script type="text/javascript"> 
        $(document).ready(function(){ 
 
            $("p").click(function () { 
              var htmlStr = $(this).html("<span class='red'>Hello <b>Again</b></span>"); 
               
            }); 
     
 
        }); 
    </script> 
    <style> 
      .selected { color:red; } 
      .highlight { background:yellow; } 
    </style>     
  </head> 
  <body> 
    <body> 
      <p class="selected highlight">Hello</p> 
 
    </body> 
</html> 
 
    
  
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