Index: includes/form.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/form.inc,v
retrieving revision 1.267
diff -u -r1.267 form.inc
--- includes/form.inc	12 Feb 2008 13:52:32 -0000	1.267
+++ includes/form.inc	17 Feb 2008 11:09:12 -0000
@@ -1250,6 +1250,20 @@
 }
 
 /**
+ * Helper function to determine the value for a file field element.
+ */
+function form_type_file_value($form, $edit = FALSE) {
+  if ($edit !== FALSE) {
+    // Retrieve the name of the file field.
+    $name = substr($form['#name'], 6, -1);
+    
+    // Save the file and return false when it fails.
+    $file = file_save_upload($name);
+    return $file === 0 ? FALSE : $file;
+  }
+}
+
+/**
  * Helper function to determine the value for form's token value.
  *
  * @param $form