The content of a web browser is internally represented as a tree of 
objects known as the document object model. For example, a section of 
the page might have an unordered list and that list would have list 
items and in a list item would be some text and links and a link might 
have the URL it's going to jump to. In Jaws and DOM mode for VO you 
pretty much traverse that tree from top to bottom. The problem is that 
with CSS (Cascading style sheets) the developer can take parts of that 
tree and shift where it appears on the page. So a three column layout 
might have the content from the left column first, then the right column 
and then the middle column. So if you are navigating the DOM and want to 
get to the middle column you might have to wade through all the other 
stuff first. In Group mode the navigation is more geographic. You move 
around from location to location as it is displayed in the browser. So 
in the three column example, you might navigate partway down the left 
column and if you hit VO-right you end up in the middle column partway 
down. It can get a bit tricky since the nearest object to the right 
might really by up and to the right a bit so it can jump over things at 
times. I find Group mode much easier for tables in Safari since I can 
just go up and down the columns rather than having to VO-right through 
every element of every row, but for some things DOM mode is better 
because I have less problems accidentally skipping over something. Which 
one is to be your favorite is a philosophical and usability choice only 
you can make.

CB

Portia wrote:
> Dom can mean Document Object Model. However, there could be other meanings.
>
> Smiles,
>
>
> Portia.
>
> Pete Nalda wrote:
>   
>> On Oct 24, 2009, at 2:18 AM, Anne Robertson wrote:
>>
>>   
>>     
>>> Hello May,
>>>
>>> Tabing is not the best way of navigating websites or anything else on
>>> the Mac with VO. In SL, you can now use Quick Nav to go through
>>> everything on a website or in a window using just one hand. You can
>>> also have VO read the whole web page as soon as it opens. You
>>> configure this in VoiceOver Utility under Web.
>>>
>>> You can also set a short-cut in Keyboard Commander to toggle between
>>> DOM and Groups mode for web browsing. You also have the Web Rotor
>>> which gives you even more flexibility when navigating Web pages.
>>>
>>> I've just scratched the surface of what's available to you, but you
>>> can find out more useful commands by pressing VO-H twice and examining
>>> the various commands menus.
>>>
>>> Tabbing around is a good way to miss a great deal of information.
>>>
>>> Cheers,
>>>
>>> Anne
>>>     
>>>       
>> Anne and Others,
>> What Does DOM actually mean, I sort of understand the definition of  
>> groups mode don't know what they mean by DOM.  TIA.
>>
>> Egun On, Lagunak! (Basque for G'day, Mates)
>> Pete Nalda
>> http://www.myspace.com/musikonalda
>>
>>
>>
>>
>>     
>>   
>>     
>
> >
>   

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