how to save contents from 3 textboxes in filemanager?

Hi guys,

This is the code for Cpanel to save a file.

savefile.htm:
<cpanel Fileman="fmsavefile($FORM{'dir'},$FORM{'file'},<? $FORM{'page'} ?>)">

'dir' is the directory for cpanel to save the file to.
'file' is the filename.
'page' is the contents.


Say I have 3 textboxes 'page1' 'page2' and 'page3' on the editing page(editit.html)
How do I make savefile.html save the contents of all the 3 textboxes instead of just contents from the textbox 'page'?