// This routine checks if a file exists and if it doesnt it creates it
// with the message: Data not yet processed. etc...
// Returns true if sucessfule (ie file was there or copying worked, false 
// otherwise
//
// Inputs:
// $name: name of file to check (full path if required)
//
// Written by Suzanne Aigrain on 05-Jan-2001

(See /home/xmmssc/soft/php/ch_page_exist.php)