Focus Questions

[XSi]

very simple:

is there any way I can get what field has focus in the form? I would
like to trap the "backspace" only if focus is on spesific field.
Thanks

XSi

 

[Martin Honnen]

XSi wrote:

is there any way I can get what field has focus in the form?

IE (5 and later I think, but could be 5.5 and later) has
document.activeElement
to give you the active element in the document, and basically the
element that has focus is the active element (there are subtle
differences, check MSDN).

I would
like to trap the "backspace" only if focus is on spesific field.

You could set up key event handlers on that specific field then.

 

[RobB]

very simple:

is there any way I can get what field has focus in the form? I would
like to trap the "backspace" only if focus is on spesific field.
Thanks

XSi

Browsers don't track keyboard focus globally (at least it isn't
exposed) so you'll need to do this yourself. Set a flag on the
"specific" field:

<input...onfocus="this.hasFocus=true" onblur="this.hasFocus=false" />

....and you can test:

if (refToField.hasFocus) {....
Test keyboard mods carefully, platform issues abound...

 

[RobB]

M. Honnen wrote:

<You could set up key event handlers on that specific field then.
D'oh...that would be too simple. Never mind. :-o