<html> <head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ var input = $("input:password"); $("div").text(input.length); }); </script> </head> <body> <form> <input type="password" /> </form> <div></div> </body> </html>