Well, by definition, the only way a sgi program can receive parameters is via a fields within a pair of <FORM> </FORM> tags. These are coded as INPUT, SELECT or TEXTAREA fields. Now, if what you are wanting is to have some values that you set on the form, but the user cannot see and (normally) change, then you can use hidden fields:
<FORM ACTION="/cgi-bin/formprocess.perl" METHOD="post">
<INPUT TYPE="hidden" NAME="formtype" VALUE="testform">
. . . .
</FORM>
Now along with other parameters that CGI.pm will retreive, there will be a parameter "formtype" with a value of "testform".
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