setting from values

[David Groom]

I have a form which contains amongst other code:


<form action="" name="diagform" id="diagform">
<input name="answer" type="hidden" id="q1" value="">
<input name="answer" type="hidden" id="q2" value="">
<input name="answer" type="hidden" id="q3" value="">
........
<input name="answer" type="hidden" id="q9" value="">
<form>

and I have the following javascript function:

function SetAnswer(quest ,ans) {
var quest,ans;
document.diagfo rm.answer[quest].value=quest+'. '+ans;
}


This works as I expect it, that is to say that when SetAnswer is called as
SetAnswer(q1,1) the value of answer gets set to 1 for the first hidden
field,etc.

However when the form is submitted I want all the values of answer to be in
an array for processing in PHP.

To do that I have to change the input names to "answer[]".

I can't now work out how to set the value of that element using javascript.

Anyone got any ideas?

[Berislav Lopac]

Re: setting from values

David Groom wrote:[color=blue]
> I have a form which contains amongst other code:
>
>
> <form action="" name="diagform" id="diagform">
> <input name="answer" type="hidden" id="q1" value="">
> <input name="answer" type="hidden" id="q2" value="">
> <input name="answer" type="hidden" id="q3" value="">
> .......
> <input name="answer" type="hidden" id="q9" value="">
> <form>
>
> and I have the following javascript function:
>
> function SetAnswer(quest ,ans) {
> var quest,ans;
> document.diagfo rm.answer[quest].value=quest+'. '+ans;
> }
>
>
> This works as I expect it, that is to say that when SetAnswer is
> called as SetAnswer(q1,1) the value of answer gets set to 1 for the
> first hidden field,etc.
>
> However when the form is submitted I want all the values of answer to
> be in an array for processing in PHP.
>
> To do that I have to change the input names to "answer[]".
>
> I can't now work out how to set the value of that element using
> javascript.
>
> Anyone got any ideas?[/color]

Instead of form.answer[] (which wouldn't work, use form['answer[]'].

Berislav

[Michael Winter]

Re: setting from values

On Mon, 22 Nov 2004 13:38:45 +0100, Berislav Lopac
<berislav.lopac @lopsica.com> wrote:
[color=blue]
> David Groom wrote:[/color]

[snip]
[color=blue][color=green]
>> function SetAnswer(quest ,ans) {
>> var quest,ans;[/color][/color]

Delete that statement. The arguments, quest and ans, are already local
variables.
[color=blue][color=green]
>> document.diagfo rm.answer[quest].value=quest+'. '+ans;[/color][/color]

So you append the answer after the identifier of the question?
[color=blue][color=green]
>> }
>>
>> This works as I expect it, that is to say that when SetAnswer is called
>> as SetAnswer(q1,1)[/color][/color]

I assume you mean

SetAnswer('q1', '1') or SetAnswer('q1', 1)

[snip]
[color=blue][color=green]
>> [...] I have to change the input names to "answer[]".[/color][/color]

[snip]
[color=blue][color=green]
>> Anyone got any ideas?[/color]
>
> Instead of form.answer[] (which wouldn't work, use form['answer[]'].[/color]

formObj.element s['answer[]']

would be better, however, you can reference the controls directly via
their id:

function setAnswer(q, a) {
document.forms['diagform'].elements[q].value = q + '.' + a;
}

Mike

--
Michael Winter
Replace ".invalid" with ".uk" to reply by e-mail.

[David Groom]

Re: setting from values

Mike
Many thanks, just what I was looking for.

David


"Michael Winter" <M.Winter@bluey onder.co.invali d> wrote in message
news:opshvbhvrn x13kvk@atlantis ...[color=blue]
> On Mon, 22 Nov 2004 13:38:45 +0100, Berislav Lopac
> <berislav.lopac @lopsica.com> wrote:
>[color=green]
> > David Groom wrote:[/color]
>
> [snip]
>[color=green][color=darkred]
> >> function SetAnswer(quest ,ans) {
> >> var quest,ans;[/color][/color]
>
> Delete that statement. The arguments, quest and ans, are already local
> variables.
>[color=green][color=darkred]
> >> document.diagfo rm.answer[quest].value=quest+'. '+ans;[/color][/color]
>
> So you append the answer after the identifier of the question?
>[color=green][color=darkred]
> >> }
> >>
> >> This works as I expect it, that is to say that when SetAnswer is called
> >> as SetAnswer(q1,1)[/color][/color]
>
> I assume you mean
>
> SetAnswer('q1', '1') or SetAnswer('q1', 1)
>
> [snip]
>[color=green][color=darkred]
> >> [...] I have to change the input names to "answer[]".[/color][/color]
>
> [snip]
>[color=green][color=darkred]
> >> Anyone got any ideas?[/color]
> >
> > Instead of form.answer[] (which wouldn't work, use form['answer[]'].[/color]
>
> formObj.element s['answer[]']
>
> would be better, however, you can reference the controls directly via
> their id:
>
> function setAnswer(q, a) {
> document.forms['diagform'].elements[q].value = q + '.' + a;
> }
>
> Mike
>
> --
> Michael Winter
> Replace ".invalid" with ".uk" to reply by e-mail.[/color]