I solved this problem using iframes: after the page load my script
creates an iframe for every banner, so the load time is not affected
by the external scripts.
The iframe's src points to a page containing the original synchronous
script, wrapped in a div, ie:
<div id='wrapper'>
<script type='text/javascript'
src='http://external/sync/script.js'></script>
</div>
When the iframe's onload is fired, my handler copies the
document.getElementById('wrapper').innerHTML to the main document (in
a parent.document.getElementById(íframecontainer') or something like
that).
Hope this helps,
Nicola
On Wed, Dec 15, 2010 at 5:26 PM, Mads Erik Forberg <[email protected]> wrote:
> Hello,
> have any of you worked out a async document.write that works with
> ad-hosting-services?
> My employer uses AdTech, and some times they load ads from yet another
> ad-hosting-service, so we get many layers of document.write
>
> It works fine for the first ad-service to do this stuff:
> [code]
> var oldWrite = document.write,
> content = '';
> document.write = function(d) {
> content += d;
> }
> [/code]
>
> But when the script from the AdTech loads, it loads yet another script that
> uses document.write from another service. And that document.write goes back
> to its old self.
> Like this:
> Initial call:
> <script src="path-to-adtech.js"></script>
> In that script its:
> document.write("<script src=\"another-provider.js\"><\/script>");
> And in that script:
> document.write("Print out fancy ad");
>
> So what I want is a document.write that stays persistant over all the
> layers.
>
>
> Anyone encountered this? Solutions? Hacks?
>
>
> Best regards,
> Mads Erik Forberg
>
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