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To enable Javascript in FireFox:
  1. Go to the Tools dropdown menu and select Options
  2. Select Content and check "Enable Javascript"
  3. Click the OK button
To enable Javascript in Internet Explorer:
  1. Go to the Tools dropdown menu and select Internet Options
  2. Click on the Security tab
  3. Under "Select a zone to view". Choose Internet
  4. Click on the "Custom Level..." button
  5. Under Scripting, go to Active Scripting and select the Enable option
  6. Click the OK button
To enable Javascript in Opera:
  1. Go to the Tools dropdown menu and select Preferences...
  2. Click on the Advanced tab
  3. Select Content and check "Enable Javascript"
  4. Click the OK button
To enable Javascript in Safari:
  1. Click on Settings dropdown icon and select Preferences...
  2. Select Security and check "Enable Javascript"
  3. Close the Preferences... window
  4. Close and Restart Safari