<html> 
  <head> 
    <script type="text/javascript" src="js/jquery-1.3.2.js"></script> 
    <script type="text/javascript"> 
     
        $(document).ready(function(){ 
             $("div").hover( 
                  function () { 
                    $(this).addClass("my"); 
                  }, 
                  function () { 
                    $(this).removeClass("my"); 
                  } 
             ); 
        }); 
    </script> 
    <style> 
  .my { color:blue; } 
  </style> 
 
 
  </head> 
  <body> 
    <body> 
       <div>header 1</div> 
    </body> 
</html>
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