Edit in JSFiddle

<html>
<head><title>B</title>
</head>
<body>
<p id="b"></p>
    <input type="button" id="b1" value="Press" />
</body>
</html>
$(document).ready(function()
                  {
                      $("#b1").click(function()
                                     {
                                         var ins = "<b>This is 2 Brains 20 fingers</b>";
                                         $("#b").html(ins);
                                     });
                  });