Instructions on Enabling Javascript:

Internet Explorer 5.5 and above

  1. From Tools select Internet Options
  2. Under the Security tab select the Internet icon
  3. Click the Custom level button
  4. For each of the options for Scripting, ensure 'enable' is selected
  5. Click OK
  6. Answer Yes to the prompt box that appears
  7. Click OK again


  1. From Tools select Options
  2. Select Web Features
  3. Tick the check box to activate:
  4. Click OK

Other Browsers

Infochoice does not guarantee that Calculators are supported by browsers besides the ones listed above.