12. A computer system generating a graphical user interface (GUI) on a first computer screen corresponding to a presentation generated with respect to a second computer screen irrespective of the operating system differences between the respective first and second computers, comprising: first means for providing a hypertext markup language (HTML) document including an applet tag corresponding to a Universal Client device; second means for initializing and executing the Universal Client device using a JAVA.TM. virtual machine; third means for parsing and interpreting a script associated with the Universal Client device to thereby cause the Universal Client device to display the GUI; and fourth means for generating the script for causing the Universal Client device to display the GUI.
12. A computer system generating a graphical user interface (GUI) on a first computer screen corresponding to a presentation generated with respect to a second computer screen irrespective of the operating system differences between the respective first and second computers, comprising: first means for providing a hypertext markup language (HTML) document including an applet tag corresponding to a Universal Client device; second means for initializing and executing the Universal Client device using a JAVA.TM. virtual machine; third means for parsing and interpreting a script associated with the Universal Client device to thereby cause the Universal Client device to display the GUI; and fourth means for generating the script for causing the Universal Client device to display the GUI. 14. The computer system as recited in claim 12, wherein said GUI includes a plurality of GUI objects.