donaddon is right, your code doesn't work because the script hasn't loaded
yet. When you inject a script tag into the DOM, it's loaded asynchronously
by design. This is a common trick used by web designers when they're trying
to get script to load asynchronously when it otherwise wouldn't.
Erik
On Sat, Dec 5, 2009 at 3:07 PM, donaddon <don...@verizon.net> wrote:
> I don't believe you can expect the script element loading to occur
> synchronously, so if "Background" is defined in background.js, it's
> not going to be guaranteed to be available just after creating the
> element that includes the script (in fact, I wouldn't even expect it
> to be). You might try including code in background.js that has a call
> to an initialization function at the bottom of the script.
>
> Hope that helps!
>
> On Dec 5, 10:37 am, starach <star...@gmail.com> wrote:
> > Hello,
> >
> > I'm currently working on extension that allows to add RSS Feeds as
> > bookmark folders. ( like in Firefox )
> >
> > After finishing some scripting I've decided to split the code into
> > separated files. When I run it, inside head section everything is
> > fine. New lines with script tag are added but it seems to me like they
> > have no effect. What I mean is, script files don't want to load
> > themselves and as a result I see inside console fallowing error:
> > Uncaught ReferenceError: Background is not defined - chrome-
> > extension://:id:/script/autoload/background.js:23
> >
> > function Autoload() {}
> > Autoload.aFiles = new Array('options', 'background')
> > Autoload.includeScript = function($sFile)
> > {
> > if(document.createElement && document.getElementsByTagName)
> > {
> > $Head = document.getElementsByTagName('head')[0];
> > $Script = document.createElement('script');
> > $Script.setAttribute('type', 'text/javascript');
> > $Script.setAttribute('src', $sFile);
> > $Head.appendChild($Script);
> > } else
> > {
> > console.log("ERROR: Browser does not support dynamic
> element
> > creation.")
> > }}
> >
> > Autoload.init = function()
> > {
> > for($index in Autoload.aFiles)
> > {
> >
> Autoload.includeScript("script/"+Autoload.aFiles[$index]+".js");
> > }
> > Background.init(); // Where error is
> >
> > }
> >
> > window.onload = Autoload.init();
>
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