I must be missing something very basic, but I can't figure out how to set a form field's value from within FoxWeb code. The following shows my miserable attempts.
<HTML>
<BODY>
<FORM ACTION="sum.fwx" METHOD="post">
<INPUT NAME="num1" VALUE="<%=Request.Form("num1")%>">+
<INPUT NAME="num2" VALUE="<%=Request.Form("num2")%>">=
<INPUT NAME="sum" VALUE="<%=Request.Form("sum")%>"><BR>
<INPUT TYPE="submit" VALUE="Add">
</FORM>
<%
IF Request.Form("num1") == "" OR Request.Form("num2") == ""
sum = ""
ELSE
val1 = VAL(Request.Form("num1"))
val2 = VAL(Request.Form("num2"))
sum = STR(val1 + val2)
ENDIF
Request.Form("sum") = sum
*Response.AddHeader("sum",sum) && doesn't work either
%>
</BODY>
</HTML>