Finds all inputs that with a name attribute that contains 'a'
<html> <head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("input[name*='a']").val("a"); }); </script> </head> <body> <body> <input name="a" /> </body> </html>