diff --git a/htdocs/collab/index.php b/htdocs/collab/index.php
index 7f08beff955..3cba48cfc07 100644
--- a/htdocs/collab/index.php
+++ b/htdocs/collab/index.php
@@ -24,49 +24,6 @@
define('NOSCANPOSTFORINJECTION',1);
define('NOSTYLECHECK',1);
-
-/**
- * Show HTML header HTML + BODY + Top menu + left menu + DIV
- *
- * @param string $head Optionnal head lines
- * @param string $title HTML title
- * @param string $help_url Url links to help page
- * Syntax is: For a wiki page: EN:EnglishPage|FR:FrenchPage|ES:SpanishPage
- * For other external page: http://server/url
- * @param string $target Target to use on links
- * @param int $disablejs More content into html header
- * @param int $disablehead More content into html header
- * @param array $arrayofjs Array of complementary js files
- * @param array $arrayofcss Array of complementary css files
- * @param string $morequerystring Query string to add to the link "print" to get same parameters (set this only if autodetect fails)
- * @return void
- */
-function llxHeader($head='', $title='', $help_url='', $target='', $disablejs=0, $disablehead=0, $arrayofjs='', $arrayofcss='', $morequerystring='')
-{
- global $conf;
-
- // html header
- top_htmlhead($head, $title, $disablejs, $disablehead, $arrayofjs, $arrayofcss);
-
- print '
';
-
- // top menu and left menu area
- if (empty($conf->dol_hide_topmenu))
- {
- top_menu($head, $title, $target, $disablejs, $disablehead, $arrayofjs, $arrayofcss, $morequerystring, $help_url);
- }
- if (empty($conf->dol_hide_leftmenu))
- {
- left_menu('', $help_url, '', '', 1, $title, 1);
- }
-
- // main area
- //main_area($title);
- print ''."\n".'