1. A computer program product forming an extension of a scripting language platform that extends a set of widgets used in a graphical script language platform interface to include web browser plug-in applications designed to extend the functionality of web browser programs, where an extension command is added to the scripting language and with an extension command syntax including a source locator parameter, with the computer program product comprising: <p> a computer-readable storage medium for storing plug-in-interface extension program code for extending the functionality of a script interpreter platform by employing web browser plug-in applications as widget components within the graphical script language platform interface, said plug-in-interface extension program code comprising: <p>parsing program code for causing a computer to parse a script to identify an extension command and the source locator parameter included in the syntax of the extension command; <p>fetching program code for, when the extension command is parsed, fetching objects referenced by the source locator parameter using standard internet procedures; <p>causing the computer to allow the web browser plug in application to display and provide interactive processing of a data and/or program object, referenced by the source locator parameter, within a plug-in-interface extension-controlled window of the graphical script language platform interface so that the web browser-plug in application can be manipulated as a widget used in said graphical script language platform interface.</font></html>