How Can an <input> tag be made visible or hidden dynamically

[Rick]

I'm trying to make an input tag visible or hidden based on the value of
another input tag, so that when the 1st input tag is changed in anyway, the
2nd input tag will become visible.

Thanks in advance,

Rick

[axlq]

In article <Jb***************@newssvr14.news.prodigy.com>,
Rick <ri*****@ccpspeople.comwrote:

>I'm trying to make an input tag visible or hidden based on the value of
another input tag, so that when the 1st input tag is changed in anyway, the
2nd input tag will become visible.

It needs javascript onKeyUp and onKeyDown methods and some CSS.

CSS: ==================================================

..hide { display: none; }
..show { display: inline; }

HTML: =================================================

<!-- this is your "sensing" input field -->
<input type="text" name="sense" value=""
onKeyDown="showhidden(this.form.sense,this.form.re veal);"
onKeyUp="showhidden(this.form.sense,this.form.reve al);" >

<!-- this is your initially-hidden input field -->
<input type="text" name="reveal" value="" class="hide">

Javascript in your HTML <headblock: ==================

<script language="JavaScript" type="text/javascript>
function showhide(fieldname,hiddenname)
{
hiddenname.className = fieldname.length ? "show" : "hide";
}
</script>

Note: I have not tested anything I wrote above. But it should get you
started.

-Alex

[Jukka K. Korpela]

Rick <ri*****@ccpspeople.comscripsit:

I'm trying to make an input tag visible or hidden based on the value
of another input tag, so that when the 1st input tag is changed in
anyway, the 2nd input tag will become visible.

(Apparently you mean that the content of an input element is changed. Users
don't change tags; only authors do when they edit a document.)

It should be obvious that you cannot do this in HTML. If it isn't obvious to
you, then you haven't understood what HTML. It's a poor lonesome data
format.

What you should look for depends on what you are doing and what you wish to
accomplish. You haven't given the slightest clue about this.

--
Jukka K. Korpela ("Yucca")
http://www.cs.tut.fi/~jkorpela/

[MaxWedge426]

Hey! Be nice to people. Maybe this chap doesn't know as much about
HTML as you. And maybe he's a brain surgeon seeking relaxation.
Bitterness is its own "reward." Congratulations.

[Stephen Poley]

On Sat, 19 Aug 2006 00:45:43 +0000 (UTC), ax**@spamcop.net (axlq) wrote:

>In article <Jb***************@newssvr14.news.prodigy.com>,
Rick <ri*****@ccpspeople.comwrote:

>>I'm trying to make an input tag visible or hidden based on the value of
another input tag, so that when the 1st input tag is changed in anyway, the
2nd input tag will become visible.

It needs javascript onKeyUp and onKeyDown methods and some CSS.

Or maybe the onChange method, depending on exactly what the OP has in
mind.

Don't forget to test that the result is still usable (if less elegant)
when Javascript is disabled.

--
Stephen Poley

http://www.xs4all.nl/~sbpoley/webmatters/