1) Create a global object to manage your queue. QManager lets say. Give it an array, called queue, and a function called "add"
2) Add a global handler for the Ajax.responders onComplete event.
3) Instead of firing requests directly, call your QManager "add" function. The function should enqueue the request and check if any requests are processing right then. If so, you're done, because the onComplete event will pick it up. If not, kick off the first element in the queue.
4) In the onComplete event of your registered Ajax.responders, check if there are any queued items, and process them if they exist.
Never actually tried this myself, but it should work...not to hard.
Good luck!
-Jerod
On 7 Mar 2006 18:49:37 -0000, Dave Teare <[EMAIL PROTECTED]
> wrote:
To answer your first question, the the body's ONLOAD command is executed
once the page has completed loading. Having script in your HTML gets
executed at different times depending on the browser (at least that's my
experience).
As for the other questions, why do you need 2-3 ajax calls to execute on
page load? You should be able to do everything you need in once
request. For example, check out the code for PalmSphere.com; it uses an
XHR to load _javascript_ code from the server, and then eval's it - this
is used to populate some JS array's, etc. Then, I use use JS to
interpret the data and act accordingly (i.e. mark favorites, update
favorite counter, etc.). In fact in DevLists I abandoned this method
entirely and simply populated the JS arrays during the intial page
render; it caused the back button to break sometimes, but the improved
performance was worth it.
HTH.
On Tuesday, March 07, 2006, at 7:37 PM, Jan Deppisch wrote:
>Hi,
>
>currently I execute 2-3 AJAX-Calls (located at the end of html-body) on
>loading the page. I run into problems now because they are executed
>parallel of course :)
>
>How can I garuantee that the Calls are executed when the page has loaded
>completely ?
>
>And, more interesing, how can I make one AJAX-Call start when the
>previous has completely finished ?
>
>I've read about Effect.Queues - is that the keyword ??
>
>Thanks for your help
>Jan
>
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Cheers!
--Dave Teare
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