Forum OpenACS Q&A: javascript for hiding/showing form elements

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1: javascript for hiding/showing form elements
Posted by David Kuczek on 08/31/02 05:28 PM
I want to integrate a js into survey_simple that hides a form element
whenever a user doesn't have to fill it out. Whenever the user wants
to fill it out anyways, he just clicks on a button and the form
element opens up.

I found an very good example, but it only works on IE:

http://www.anders.com/projects/javascript/form-dynamic_hide/

This example also works on Mozilla, but the form gets exchanged with
whitespace and not with nothing:

http://www.js-examples.com/example/?ex=97&mode=2

Does anyone already hava such an implementation or knows how to merge
the two little example scripts?

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2: Response to javascript for hiding/showing form elements (response to 1)
Posted by Jonathan Ellis on 09/02/02 04:30 AM
it would be a lot easier to leave the input visible, but disabled.  good luck. :)
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3: Response to javascript for hiding/showing form elements (response to 1)
Posted by Andrei Popov on 09/02/02 10:25 AM
how about putting form elements onto different layers with <div> and then stacking them & changing visibility props?  this wont, however, work in many (if not all) older browsers.
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4: Response to javascript for hiding/showing form elements (response to 1)
Posted by David Kuczek on 09/03/02 04:44 PM
I found a solution that works with IE, Netscape and Mozilla:

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5: Response to javascript for hiding/showing form elements (response to 1)
Posted by David Kuczek on 09/03/02 04:45 PM
Funny, I thought that our bboard would cut out scripts, but noap...
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6: Response to javascript for hiding/showing form elements (response to 1)
Posted by Jonathan Ellis on 09/03/02 04:53 PM
I don't think the 3.x bboard calls util_close_html_tags out of the box.  (And you'd still need to add "syn(SCRIPT) discard" to the list.)
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7: Response to javascript for hiding/showing form elements (response to 1)
Posted by Andrei Popov on 09/03/02 04:58 PM
nice, albeit does not work in Opera, at least on the bboard page.
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8: Response to javascript for hiding/showing form elements (response to 1)
Posted by David Kuczek on 09/03/02 05:37 PM
I suppose that if it doesn't work on the bboard it shouldn't work anywhere else on Opera... I am not sure what part of the code must be changed to make it Opera compliant, but you could recognize the browser with a js-sniffer and then automatically exchange that part of the code.
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9: Response to javascript for hiding/showing form elements (response to 1)
Posted by Matthew Terenzio on 09/03/02 09:36 PM
Doesn't seem to work on netscape 4.77 on the MAC