Javascript onkeyXXXX function and Netscape 4.75

wahoo02 · Feb 24, 2005

I am having a problem getting JavaScript onkeyXXX events to work in Netscape 4.75. And yes, unfortunately, I have to support Netscape 4.75. Below is some sample code from another forum that exactly describes the problem that I am having.

-------------------------------------------------
From:

http://www.tek-tips.com/viewthread.cfm?qid=374063

In Netscape 4.75, onkeypress, onkeyup and onkeydown fail on text boxes within a table. If the text boxes are not in a table, the onkeyxxx works.

This one fails:
<html>
<head>
<title>Test Keypress</title>
</head>
<body>
<form>
<table width="70%" border="1"><tr><td>
<b>CkKeyUp:</b></td><td>
<input type="text" name="temp" size="10" onkeyup="alert('keyup')"></td></tr>
<tr><td>
<b>CkKeyDn:</b></td><td>
<input type="text" name="temp" size="10" onkeydown="alert('keydown')"></td></tr>
<tr><td>
<b>CkKeyPress:</b></td><td>
<input type="text" name="temp" size="10" onkeypress="alert('keypress')"></td></tr>
</table>
</form>
</body>
</html>

but this one works:
<html>
<head>
<title>Test Keypress</title>
</head>
<body>
<form>
<b>CkKeyUp:</b></td><td>
<input type="text" name="temp" size="10" onkeyup="alert('keyup')"><br>
<b>CkKeyDn:</b>
<input type="text" name="temp" size="10" onkeydown="alert('keydown')"><br>
<b>CkKeyPress:</b>
<input type="text" name="temp" size="10" onkeypress="alert('keypress')">
</form>
</body>
</html>

And even weirder, on rare occasions, the failing example will work as well. That is, if you keep reloading the failing example, once in a while (about 1 out of 10 times), it will work.

Can anyone tell me if there is any way to get the onkeyxxx triggers within a table to work reliably in NS 4.75? (I'm using the table merely as a layout device).

Thanks for any help/advice. Suggestions or documentation explaining this behavior are welcome.

BillyRayPreachersSon · Feb 24, 2005

Have you tried explicity capturing the events at the window level?... Something like this:

Code:

<script language="JavaScript1.2">
   function nnCaptureKeys(e) {
      // your code here
      alert('Capturing!');
   }
   window.captureEvents(Event.KEYPRESS);
   window.onKeyPress = nnCaptureKeys;
</script>

It's been a long while since I've used the "language=" syntax or done any coding for NN4.x... but give it a whirl anyway!

Hope this helps,
Dan

wahoo02 · Feb 24, 2005

That code does work, however I need to be able to capture onKey events within a table and to be able to distinguish which text box is causing the event to fire. The capturing of window events is too broad. The real issue is trying to capture text box events from inside a table, as you can see in the example above it is able to easily capture events from text boxes just on the page.

I suppose I could put all my functionality for all of the onKey events at the top but that would be poor performing code since each individual textbox’s code would be executed whenever an onKey event was detected in the window. It would be best if there were some way to get the events to fire individually for each text box, from within a table.

A demonstration using the example code above would be greatly appreciated.

BillyRayPreachersSon · Feb 24, 2005

Sorry - I mis-read your post.

Have a read of this article I found by doing a Google search for:

"netscape 4" table capture keypress

http://www.faqts.com/knowledge_base/view.phtml/aid/5491/fid/145

I think it might answer your question.

Hope this helps,
Dan

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Javascript onkeyXXXX function and Netscape 4.75

wahoo02

Programmer

BillyRayPreachersSon

Programmer

wahoo02

Programmer

BillyRayPreachersSon

Programmer

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