Millisecond Forums

I tried in Chrome and Mozilla, works well in both!

wow.. and now it's working again!!! great! thank you so much.
how did you get to that conclusion?!

Did some more quick digging and testing. Try changing the GetSubjectNumber() function in the HTML source to

function GetSubjectNumber()
{
    return (Math.ceil(Math.random() * 1000000000)).toString();
}

and let me know if that resolves the issue in Firefox. (I have no idea why the original code suddenly stopped working there.)

Oh, I've just noticed the PS, sorry. It's probably a useful piece of additional info: I use a page created by simply modifying the standard launch page (so that I can format the text and instructions displayed on the first screen and translate some small instructions as well regarding the plugins), so this problem might be due to the fact that normally the standard page is more "flexible" and by simply copying and editing it I made something be fixed that should not be so...

Uhh, oh my... I tried explorer as well and it did work... thank you very much, you saved my day again. And yes, I'll put some pressure on the head of department and ask for the upgrade to Inquisit 4. So you say simply changing the html would not solve the problem, right? 

Thanks for the link. There is nothing obviously "wrong" with the launch page code. That said, I am able to reproduce the error using the latest Firefox version / the NPAPI plugin, but not using Internet Explorer / ActiveX or ClickOnce.

My guess would thus be that Mozilla changed their plugin handling (again) recently, essentially breaking the way the subject id and other information is passed from the launch page to the plugin via. The only quick "fix" I can think of is to direct your participants to complete the study using Internet Explorer (which is fortunately present on every Windows system by default).

Over the long run, I would recommend at least considering upgrading to Inquisit 4, which provides support for modern platforms and browsers.

P.S.: I'll be looking into this more deeply, but that'll take some time. Oddly enough, the issue does not seem to occur with standard 3.0.6.0 launch pages generated via the Web Script Wizard, which suggests there is some (non-obvious) factor relating to the "custom" launch page you're using involved.

Oh, okay, it's here: http://www.millisecond.com/myaccount/scripts/bencekas/batchIATdemog/IATintroV2.html

The error message indicates no subject id was passed to the script. In case of the IAT that's fatal as the counterbalancing of conditions (cf. the <variables> element) relies on it.

As to why that is, I cannot tell you based on the materials you provided. I would need the live link to the actual launch page.

dear Dave, sorry, itts me again... the very same scripts and html that run perfectly a week ago just went rong and I cannopt find the reason why... I did not modify any important parts in the script. it's probably a typical issue, please see the error messagge and the scripts and html attached. could you help me out again?

No problem. Note that I would generally recommend sticking with Math.floor(), which -- in theory -- should get you closest to a uniform odd/even distribution.