Add easy fix to solve pb of links for some modules.

htdocs/core/class/html.formfile.class.php

@@ -554,9 +554,12 @@ class FormFile
 
 					$out.= "<tr ".$bc[$var].">";
 
+					$documenturl = DOL_URL_ROOT.'/document.php';
+					if (isset($conf->global->DOL_URL_ROOT_DOCUMENT_PHP)) $documenturl=$conf->global->DOL_URL_ROOT_DOCUMENT_PHP;
+
 					// Show file name with link to download
 					$out.= '<td class="nowrap">';
-					$out.= '<a data-ajax="false" href="'.DOL_URL_ROOT . '/document.php?modulepart='.$modulepart.'&amp;file='.urlencode($relativepath).'"';
+					$out.= '<a data-ajax="false" href="'.$documenturl.'?modulepart='.$modulepart.'&amp;file='.urlencode($relativepath).'"';
 					$mime=dol_mimetype($relativepath,'',0);
 					if (preg_match('/text/',$mime)) $out.= ' target="_blank"';
 					$out.= ' target="_blank">';