Within LiveCycle Designer ES, FormCalc is the default scripting language in all scripting locations, with JavaScript™ as the alternative. Scripting takes place on the various events that accompany each form object, and you can use a mixture of FormCalc and JavaScript on interactive forms. However, if you are using a server-based process, such as LiveCycle Forms ES, to create forms for viewing in an internet browser, FormCalc scripts on certain form object events do not render onto the HTML form. This functionality is to prevent Internet browser errors from occurring when users work with the completed form.