Obvious.
You see that the script is nearly totally removed
 

So you have no rights to use javascript.

You wrote that you use the LimeSurvey hosted version.
Are you the only user, are you the superadmin?
Obviously the XSS filter is "ON" and yoou are not a superadmin.

Joffm
 

Thanks! I suspected that that could be the problem after reading the Limesurvey guide. We are approximately 5 users at my workplace and I am not the superadmin. I can ask the superadmin to turn the XSS filter off. Can any side effects arise when the XSS filter is turned off? I don't want to cause any problems for my collegues' surveys.

By the way:
Is it an open or closed survey.
In a closed survey you can create this 10:10 randomization in Excel and add it as an additional attribute to each participant.

Joffm

MattiasL wrote:

Thanks! I suspected that that could be the problem after reading the Limesurvey guide. We are approximately 5 users at my workplace and I am not the superadmin. I can ask the superadmin to turn the XSS filter off. Can any side effects arise when the XSS filter is turned off? I don't want to cause any problems for my collegues' surveys.

Disabling the XSS filter will not affect other surveys.

Now after disabling the XSS filter the script works perfectly! Thank you very much!!