[Javascript] Changing an Objects ID and Name

Scott Reynen scott at randomchaos.com
Wed Sep 6 17:42:12 CDT 2006

On Sep 6, 2006, at 5:10 PM, tedd wrote:

> At 9:05 AM -0700 9/6/06, Brian L. Matthews wrote:
>>> 1. With ajax you can change the html between divs.
>> No. Ajax is the client communicating with a server, usually using  
>> XMLHttpRequest. While lots of applications manipulate the DOM in  
>> the client based upon the result of the request, the two are  
>> completely independent. A page can make XMLHttpRequests and then  
>> not change the page in any way, and JavaScript (or other client  
>> side scripting languages) can modify the page using DOM methods  
>> without talking to a server at all.
> Well maybe I just don't know any better.
> I used ajax to send a XMLHttpRequest that changes the html without  
> reloading the entire page.

No, you didn't.  You used AJAX/XMLHttpRequest to fetch content from  
the server.  You used DOM manipulation to change HTML.  That you used  
both in the same script does not in any way contradict what Brian  
said: the two are completely independent.  AJAX is not the same as  
DOM manipulation.

On Sep 6, 2006, at 5:22 PM, tedd wrote:

> Again, what is it that I'm not getting here? Is it communication  
> with the server? Must the solution not contact the server, is that it?

Why would you use AJAX here?  It doesn't appear to solve the problem  
at hand.  If you're just using AJAX because you want to use AJAX,  
that's fine, but presenting it as a solution to a problem it doesn't  
actually solve is likely to confuse people.  The problem of swapping  
images is solved with DOM manipulation.  Anything you add on top of  
that is solving a different problem -- assuming it solves a problem  
at all.


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