<html> <head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("p").wrapInner(document.createElement("b")); }); </script> <style> div { border:2px green solid;} </style> </head> <body> <body> <p>Hello</p> </body> </html>