diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 81f564254a1..5f147017bbd 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -1683,7 +1683,7 @@ function dol_trunc($string,$size=40,$trunc='right',$stringencoding='UTF-8',$nodo
 /**
  *	Show picto whatever it's its name (generic function)
  *
- *	@param      string		$alt         		Text on alt and title of image
+ *	@param      string		$alt         		Text on alt and title of image (alt only if param notitle is set to 1)
  *	@param      string		$picto       		Name of image file to show ('filenew', ...)
  *												If no extension provided, we use '.png'. Image must be stored into theme/xxx/img directory.
  *                                  			Example: picto.png                  if picto.png is stored into htdocs/theme/mytheme/img
@@ -1692,10 +1692,11 @@ function dol_trunc($string,$size=40,$trunc='right',$stringencoding='UTF-8',$nodo
  *	@param		string		$options			Add more attribute on img tag (For example 'style="float: right"')
  *	@param		int			$pictoisfullpath	If 1, image path is a full path
  *	@param		int			$srconly			Return only content of the src attribute of img.
+ *  @param		int			$notitle			1=Disable tag title. Use it if you add js tooltip, to avoid duplicate tooltip.
  *  @return     string       				    Return img tag
  *  @see        #img_object, #img_picto_common
  */
-function img_picto($alt, $picto, $options = '', $pictoisfullpath = false, $srconly=0)
+function img_picto($alt, $picto, $options = '', $pictoisfullpath = false, $srconly=0, $notitle=0)
 {
 	global $conf;
 
@@ -1739,7 +1740,7 @@ function img_picto($alt, $picto, $options = '', $pictoisfullpath = false, $srcon
 	}
 
 	if ($srconly) return $fullpathpicto;
-	else return '<img src="'.$fullpathpicto.'" border="0" alt="'.dol_escape_htmltag($alt).'" title="'.dol_escape_htmltag($alt).'"'.(! empty($options)?' '.$options:'').'>';
+	else return '<img src="'.$fullpathpicto.'" border="0" alt="'.dol_escape_htmltag($alt).'"'.($notitle?'':' title="'.dol_escape_htmltag($alt).'"').($options?' '.$options:'').'>';
 }
 
 /**
diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index a9ca7e4c2f7..dd32c424fac 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -1421,18 +1421,17 @@ function top_menu($head, $title='', $target='', $disablejs=0, $disablehead=0, $a
 	    $logouthtmltext=$appli.' '.DOL_VERSION.'<br>';
 	    $logouthtmltext.=$langs->trans("Logout").'<br>';
 	    //$logouthtmltext.="<br>";
-	    if ($_SESSION["dol_authmode"] != 'forceuser'
-	    && $_SESSION["dol_authmode"] != 'http')
+	    if ($_SESSION["dol_authmode"] != 'forceuser' && $_SESSION["dol_authmode"] != 'http')
 	    {
 	        $logouttext .='<a href="'.DOL_URL_ROOT.'/user/logout.php"';
 	        //$logouttext .=empty($atarget?(' target="'.$atarget.'"'):'';
 	        $logouttext .='>';
-	        $logouttext .= img_picto($langs->trans('Logout'), 'logout.png', 'class="login"');
+	        $logouttext .= img_picto($langs->trans('Logout'), 'logout.png', 'class="login"', 0, 0, 1);
 	        $logouttext .='</a>';
 	    }
 	    else
 	    {
-	        $logouttext .= img_picto($langs->trans('Logout'), 'logout.png', 'class="login"');
+	        $logouttext .= img_picto($langs->trans('Logout'), 'logout.png', 'class="login"', 0, 0, 1);
 	    }
 
 	    print '<div class="login_block">'."\n";