My guess is that txtMyTextbox should be #txtMyTextbox.

>I am trying to incorporate a jQuery Change function in an asp.net page that would make certain control invisible when user starts typing (making changes) in a text box. My initial test, just to call an alert() does not seem to work. Here is my code:
>
>

><script type="text/javascript">
>       $(document).ready(function () {
>
>           $("txtMyTextbox").change(function () {
>
>               alert("Change Function Called");
>
>           });
>
>   })
></script>
>

>
>What is wrong with my code? TIA