How to implement a keyListener in JSF/JSP

Hello,
I�m using JSC and want to implement a keyListener in my application. I want to press ENTER and a method in my java class should be called (regardless of the component, which has the focus). Is this possible (normally, a component must have the focus for that)?
I can get the pressed key using javascript but how can I call the corresponding java method? And if I use javascript, that means that a UI-component should gain the focus first to call its javascript method. In this case I don`t even need javascript, because I need a general possibility to catch a key pressed event.
Thanks for suggestions

Hi Dan,
Here is some key listner code that makes sure the user only enters numbers. Maybe you can change it for the return button (I think the charCode of the return button is 10, btw)
<script type="text/javascript">
function checkIt(evt)
     var charCode = (evt.charCode) ? evt.charCode : ((evt.which) ? evt.which : evt.keyCode);
     if (charCode > 31 && (charCode < 48 || charCode > 57))
          alert("Please make sure entries are numbers only.");
          return false;
          return true;
</script>And in the h:inputText I have onkeypress="return checkIt(event)"
Cheers,
Illu

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Here is some key listner code that makes sure the user only enters numbers. Maybe you can change it for the return button (I think the charCode of the return button is 10, btw)
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