Activate Javascript
Firefox
- Click in the upper menu on Tools / Options.
- Here choose Enable JavaScript and
- click OK.
Internet Explorer
- Click in the upper menu on Tools / Internet Options.
- There click at the menu Security either on Medium, or choose Custom Level
- and then activate below Scripting the point Enable Active Scripting.
- Confirm by clicking OK.
Mozilla
- Click in the upper menu on Edit / Preferences.
- At Advanced / Scripts & Plugins chooseNavigator.
- Now click on OK.
Opera
- Click in the upper menu on Tools / Preferences.
- At Multimedia choose Enable JavaScript and
- click OK.