[Javascript] dynamic variables names

[Marcelo Simon]

Almost !!!

using eval(); i got the first part correct, now alert(eval("nt_0"+i).src)
traces to the correct image, but now when I mouse over, the browser is
showing me an syntax error that I can't find.

sorry to bother again, but does anyone has a clue, on how to fix it ?

function nota(numero){
 for ( var i=1; i < 6; i++){
  if ( i <= numero ){
   eval("nt_0"+i).src = eval("../_img/1_nota_0"+i+"_on.gif");
  } else {
   eval("nt_0"+i).src = eval("../_img/1_nota_0"+i+"_on.gif");
  }
 }
}

Thanks again to everyone for their patience :)
Marcelo Simon

----- Original Message -----
From: "Peter Brunone" <peter at brunone.com>
To: "[JavaScript List]" <javascript at LaTech.edu>
Sent: Tuesday, June 24, 2003 3:38 PM
Subject: Re: [Javascript] dynamic variables names


> Marcelo,
>
>    I'm not sure if this will completely answer your question, but you can
create Javascript code from a string using the eval() function... so if you
want to refer to an image called 'myGif', you can set a variable equal to
eval('myGif') and then call that variable's .src property.  Of course, you
can also use the available collections and getElementByID as Chris has shown
below.
>
> Regards,
>
> Peter
>
> ---------- Original Message ----------------------------------
> From: "Marcelo Simon" <grillo at lazzuri.com.br>
> Reply-To: "[JavaScript List]" <javascript at LaTech.edu>
> Date:  Tue, 24 Jun 2003 14:44:25 -0300
>
> >Thanks for the answers, but they didn't solve my problem.
> >
> >I didn't post the entire function, and that's why I think you say that I
don't have a dynamic variable name. ( or maybe I'm wrong ), here's the
function
> >
> >function note(number){
> > for ( var i=1; i < 6; i++){
> >  if ( i <= number ){
> >  alert(['nt_0'+i].src); // it's tracing undefined
> >   ['nt_o'+i].src = '../_img/1_note_0'+i+'_on.gif';
> >  } else {
> >   ['nt_o'+i].src = '../_img/1_note_0'+i+'_off.gif';
> >  }
> > }
> >}
> >
> >what I'm trying to accomplish, is to change some images from 1 to i based
on the number I pass to the function (ie. if I pass 3, I want images 1,2 and
3 to be on and 4 and 5 to be off ), so if someone has a different approach
to this please share.
> >
> >Thanks again
> >Marcelo Simon
> >
> >  ----- Original Message -----
> >  From: Chris Tifer
> >  To: [JavaScript List]
> >  Sent: Tuesday, June 24, 2003 1:10 PM
> >  Subject: Re: [Javascript] dynamic variables names
> >
> >
> >  Do you have a dynamic variable name? I would never use a
> >  dynamic variable to be honest with you - or at least haven't ever
> >  found the need for one yet, but from the looks of it below, you
> >  don't have a dynamic variable, but rather you're trying to build
> >  a reference to an image dynamically.
> >
> >  To do that, use the document.images collection and
> >  build your string when targeting a specific element in that
> >  collection:
> >
> >  document.images["nt_o" + i].src = "path/to/image.gif"
> >
> >  That's not a dynamic variable name - just so you're aware.
> >
> >  Chris Tifer
> >  http://emailajoke.com
> >
> >    ----- Original Message -----
> >    From: Marcelo Simon
> >    To: * Yahoo / Javascript
> >    Sent: Tuesday, June 24, 2003 11:50 AM
> >    Subject: [Javascript] dynamic variables names
> >
> >
> >    Hi list,
> >
> >    It's me again, and I need some help again please.
> >
> >    how can I use dynamic variables name in JS ?
> >
> >    I mean, how do I evaluate the 2 parts so they work ?
> >
> >    if ( i <= number ){
> >       ['nt_o'+i].src = '../_img/1_nota_0'+i+'_on.gif';
> >    }
> >
> >    thanks in advance
>
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