accessing selectbox value if name is variable

[Michael]

Hello!

I have a problem accessing the value of selected option. It works fine
if i put fixed name of select box, but not if the name is variable.
Can anyone help me with it?



function sel(name){
var p = 'prefix_'+name; // name is string like id0 or id1 and so on
var list = document.forms[0].p; //here fails the script in firefox,
because it cannot evaluate p as name of select box
var zonename = list.options[list.selectedIn dex].value;
}





Thanks!

[Michael]

Re: accessing selectbox value if name is variable

On Aug 22, 11:43 am, Michael <useit...@gmail .comwrote:

Hello!
>
I have a problem accessing the value of selected option. It works fine
if i put fixed name of select box, but not if the name is variable.
Can anyone help me with it?
>
function sel(name){
  var p = 'prefix_'+name; // name is string like id0 or id1 and so on
  var list = document.forms[0].p; //here fails the script in firefox,
because it cannot evaluate p as name of select box
  var zonename = list.options[list.selectedIn dex].value;
>
}
>
Thanks!

function is called not directly in select tag, so I can't use 'this'
in call :
<input type="button" name="b" onclick="javasc ript:sel('id0') ;" />

[Michael]

Re: SOLVED: accessing selectbox value if name is variable

On Aug 22, 11:46 am, Michael <useit...@gmail .comwrote:

On Aug 22, 11:43 am, Michael <useit...@gmail .comwrote:
>

Hello!

>

I have a problem accessing the value of selected option. It works fine
if i put fixed name of select box, but not if the name is variable.
Can anyone help me with it?

>

function sel(name){
  var p = 'prefix_'+name; // name is string like id0 or id1 and so on
  var list = document.forms[0].p; //here fails the script in firefox,
because it cannot evaluate p as name of select box
  var zonename = list.options[list.selectedIn dex].value;

>

}

>

Thanks!

>
function is called not directly in select tag, so I can't use 'this'
in call :
<input type="button" name="b" onclick="javasc ript:sel('id0') ;" />

second line in function should be:
var list = document.forms[0].elements[p];

[RobG]

Re: SOLVED: accessing selectbox value if name is variable

On Aug 22, 8:23 pm, Michael <useit...@gmail .comwrote:
[...]

second line in function should be:
 var list = document.forms[0].elements[p];

There is always the FAQ, though you may need to be persistent to find
the answer:

<URL: http://www.jibbering.com/faq/faq_not..._brackets.html >


--
Rob

[Laser Lips]

Re: SOLVED: accessing selectbox value if name is variable

On Aug 22, 11:39 am, RobG <rg...@iinet.ne t.auwrote:

On Aug 22, 8:23 pm, Michael <useit...@gmail .comwrote:
[...]
>

second line in function should be:
var list = document.forms[0].elements[p];

>
There is always the FAQ, though you may need to be persistent to find
the answer:
>
<URL:http://www.jibbering.c om/faq/faq_notes/square_brackets .html>
>
--
Rob

Why don't you just do ...

var p = 'prefix_'+name;
list = document.getEle mentById(p);

Graham

[Gregor Kofler]

Re: SOLVED: accessing selectbox value if name is variable

Laser Lips meinte:

Why don't you just do ...
>
var p = 'prefix_'+name;
list = document.getEle mentById(p);

Why should I use gEBI() when I have got the *name* of an element?

Gregor


--
http://photo.gregorkofler.at ::: Landschafts- und Reisefotografie
http://web.gregorkofler.com ::: meine JS-Spielwiese
http://www.image2d.com ::: Bildagentur für den alpinen Raum

[Gregor Kofler]

Re: SOLVED: accessing selectbox value if name is variable

Michael meinte:

><input type="button" name="b" onclick="javasc ript:sel('id0') ;" />

Forget about the "javascript :". What else than JS could be in the
handler attributes of an element?

Gregor


--
http://photo.gregorkofler.at ::: Landschafts- und Reisefotografie
http://web.gregorkofler.com ::: meine JS-Spielwiese
http://www.image2d.com ::: Bildagentur für den alpinen Raum

[RobG]

Re: SOLVED: accessing selectbox value if name is variable

On Aug 22, 9:55 pm, Laser Lips <loudsphi...@gm ail.comwrote:

On Aug 22, 11:39 am, RobG <rg...@iinet.ne t.auwrote:

[...]

There is always the FAQ, though you may need to be persistent to find
the answer:

>

<URL:http://www.jibbering.c om/faq/faq_notes/square_brackets .html>

>

--
Rob

>
Why don't you just do ...

Why are you replying to me? And please don't quote signatures unless
that is what you are commenting about.

--
Rob

[Thomas 'PointedEars' Lahn]

Re: SOLVED: accessing selectbox value if name is variable

Gregor Kofler wrote:

Michael meinte:

>><input type="button" name="b" onclick="javasc ript:sel('id0') ;" />

>
Forget about the "javascript :". What else than JS could be in the
handler attributes of an element?

In theory, code written in any scripting language. In practice, VBS(cript),
although probably only with MSHTML. For other UAs and script engines,
`javascript:' there this is only either a (useless) label or a syntax error.


PointedEars
--
Anyone who slaps a 'this page is best viewed with Browser X' label on
a Web page appears to be yearning for the bad old days, before the Web,
when you had very little chance of reading a document written on another
computer, another word processor, or another network. -- Tim Berners-Lee

[Gregor Kofler]

Re: SOLVED: accessing selectbox value if name is variable

Thomas 'PointedEars' Lahn meinte:

Gregor Kofler wrote:

>Michael meinte:

>>><input type="button" name="b" onclick="javasc ript:sel('id0') ;" />

>Forget about the "javascript :". What else than JS could be in the
>handler attributes of an element?

>
In theory, code written in any scripting language. In practice, VBS(cript),
although probably only with MSHTML. For other UAs and script engines,
`javascript:' there this is only either a (useless) label or a syntax error.

Right. I mixed that up with the pseudo-protocol. In this case it would
be just - as you stated - label (but still wrong, because that was never
the intention of the OP).

Gregor


--
http://photo.gregorkofler.at ::: Landschafts- und Reisefotografie
http://web.gregorkofler.com ::: meine JS-Spielwiese
http://www.image2d.com ::: Bildagentur für den alpinen Raum