If I just put it anywhere, it includes it as text, displayed on the page. But instead of displaying it, I want to use the result of intercept.cgi as HTML code. I have tried putting:

<input type="hidden" name="transactioncode" value="<!--#include virtua
+l="/cgi-bin/intercept.cgi">">
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Which I would like to write into the HTML as:

<input type="hidden" name="transactioncode" value="5655645">
[download]

But instead it writes as far as

Various HTML here
<input type="hidden" name="transactioncode" value="5655645
[download]

And then it crashes out. (If this makes sense). Thanks in advance.