le for errors. 
        First all previous errors (if any) are removed from the left frame.
        Next a list of errors will be displayed in the right frame,
        as well as where they occur in the left frame.

<li><INPUT TYPE=SUBMIT VALUE=SAVE>: save the edited parameter file. 

<li><INPUT TYPE=SUBMIT VALUE="SAVE AS">: 
       save the edited parameter file under a different name.
       The new name will be entered into a text box in the top frame.

<li><INPUT TYPE=SUBMIT VALUE=REOPEN>: re-read the i