Hi,

Use the onkeyup or -down events to handle the keyboard events. Be aware that it creates an Ajax-request for every click, so it is wise to add a queue to capture/maximize the key-events you would like to handle. See the RichFaces manual, which includes a very good piece of documentation about the queues.

Leo

It doesn't need to be complex to do what you are asking for.
No need for queues, and you can avoid an ajax request per keypress.

a4j:support tags have the onsubmit attribute. If the javascript put on this line returns false then the ajax request will not fire. So, all you have to do is check what key was pressed and if is not enter or tab return false. (I'm not sure if the event is passed into that javascript or not, but I'm sure you can work it out :)

Now, all that being said. You should probably have a look at queues anyway if you are using ajax, because otherwise eventually you are going to get concurrent access exceptions.

Oh I should have said, use the onkeyup event in your a4j:support tag

So, you'll end up with something like this :S (you'll need to figure out the javascript part yourself as this would only work in IE I think.)

<h:inputText ....>
    <a4j:support 
        event="onkeyup" 
        onsubmit="if (window.event.keyCode == 9 || window.event.keyCode == 13) {return true;} return false;"
        action="#{whatever your action is}"/>
</h:inpuText

Something like that. But, you will probably want to work on that javascript a bit. It is not tested and not cross browser compatible.

Hope all goes well