[Javascript] javascript and id's

[Anthony Ettinger]

--- Paul Novitski <paul at novitskisoftware.com> wrote:

> At 10:36 AM 10/4/2005, you wrote:
> >I've shortened the function:
> >
> >function changeAttrib(id, attrib, newValue)
> >{
> >        
> document.getElementById(id).setAttribute(attrib,
> >newValue);
> >}
> 
> I would argue for a safer coding practice:
> 
>          var oEl = document.getElementById(id);
>                  if (oEl) oEl.setAttribute(attrib,
> newValue);
> 
> ...in order to avoid a javascript error message if
> the expected 
> element doesn't exist on the page.
> 

Great. So you recommend testing for getElementById
first, good idea.

Would you bother with an else in that statement? Or
simply break it. I personally don't care to support
older versions of IE and NS. Accessible means screen
readers, mobile devices, etc. ANY javascript would
break on those.



Anthony Ettinger
ph: (408) 656-2473
blog: http://www.chovy.com


		
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