diff --git a/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php b/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php
index 8c2adbe08f8..4c7ad5c71db 100644
--- a/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php
+++ b/htdocs/comm/mailing/class/html.formadvtargetemailing.class.php
@@ -456,8 +456,8 @@ class FormAdvTargetEmailing extends Form
 	 * selectAdvtargetemailingTemplate
 	 *
 	 * @param string $htmlname control name
-	 * @param number $selected  defaut selected
-	 * @param number $showempty empty lines
+	 * @param integer $selected  defaut selected
+	 * @param integer $showempty empty lines
 	 *
 	 * @return	string HTML combo
 	 */
diff --git a/htdocs/contrat/index.php b/htdocs/contrat/index.php
index f962a9e82ae..18a60a3429d 100644
--- a/htdocs/contrat/index.php
+++ b/htdocs/contrat/index.php
@@ -273,7 +273,7 @@ if (! empty($conf->contrat->enabled) && $user->rights->contrat->lire)
 		}
 		else
 		{
-			print '<tr colspan="3" '.$bc[$var].'><td>'.$langs->trans("NoContracts").'</td></tr>';
+			print '<tr '.$bc[$var].'><td colspan="3">'.$langs->trans("NoContracts").'</td></tr>';
 		}
 		print "</table><br>";
 		$db->free($resql);
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index c65fcb1bdc5..74cd27bc460 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -5250,7 +5250,7 @@ class Form
      *
      *  @param	CommonObject	$object				Object we want to show links to
      *  @param	array			$restrictlinksto	Restrict links to some elements, for exemple array('order') or array('supplier_order')
-     *  @return	int									<0 if KO, >0 if OK
+     *  @return	string									<0 if KO, >0 if OK
      */
     function showLinkToObjectBlock($object, $restrictlinksto=array())
     {
@@ -5468,7 +5468,7 @@ class Form
      *	@param	int			$option			0 return yes/no, 1 return 1/0
      *	@param	bool		$disabled		true or false
      *  @param	int      	$useempty		1=Add empty line
-     *	@return	mixed						See option
+     *	@return	string						See option
      */
     function selectyesno($htmlname,$value='',$option=0,$disabled=false,$useempty='')
     {
@@ -5810,7 +5810,7 @@ class Form
      *  @param  string	$include        Array list of groups id to include
      * 	@param	int		$enableonly		Array list of groups id to be enabled. All other must be disabled
      * 	@param	int		$force_entity	0 or Id of environment to force
-     *  @return	void
+     *  @return	string
      *  @see select_dolusers
      */
     function select_dolgroups($selected='', $htmlname='groupid', $show_empty=0, $exclude='', $disabled=0, $include='', $enableonly='', $force_entity=0)
diff --git a/htdocs/langs/en_US/products.lang b/htdocs/langs/en_US/products.lang
index b481a7e1f60..96bf0da9bfa 100644
--- a/htdocs/langs/en_US/products.lang
+++ b/htdocs/langs/en_US/products.lang
@@ -325,3 +325,6 @@ ProductVolume=Volume for 1 product
 WeightUnits=Weight unit
 VolumeUnits=Volume unit
 SizeUnits=Size unit
+DeleteProductBuyPrice=Delete buying price
+ConfirmDeleteProductBuyPrice=Are you sure you want to delete this buying price?
+
diff --git a/htdocs/product/fournisseurs.php b/htdocs/product/fournisseurs.php
index ce6815911e1..6a76055d3fc 100644
--- a/htdocs/product/fournisseurs.php
+++ b/htdocs/product/fournisseurs.php
@@ -115,7 +115,7 @@ if (empty($reshook))
 		}
 	}
 	
-	if ($action == 'remove_pf')
+	if ($action == 'confirm_remove_pf')
 	{
 		if ($rowid)	// id of product supplier price to remove
 		{
@@ -285,6 +285,12 @@ if ($id > 0 || $ref)
 
 	if ($result)
 	{
+		if ($action == 'ask_remove_pf') {
+			$form = new Form($db);
+			$formconfirm = $form->formconfirm($_SERVER["PHP_SELF"] . '?id=' . $id . '&rowid=' . $rowid, $langs->trans('DeleteProductBuyPrice'), $langs->trans('ConfirmDeleteProductBuyPrice'), 'confirm_remove_pf', '', 0, 1);
+			echo $formconfirm;
+		}
+		
 		if ($action <> 'edit' && $action <> 're-edit')
 		{
 			$head=product_prepare_head($object);
@@ -680,7 +686,7 @@ if ($id > 0 || $ref)
 						if ($user->rights->produit->creer || $user->rights->service->creer)
 						{
 							print '<a href="'.$_SERVER['PHP_SELF'].'?id='.$object->id.'&amp;socid='.$productfourn->fourn_id.'&amp;action=add_price&amp;rowid='.$productfourn->product_fourn_price_id.'">'.img_edit()."</a>";
-							print '<a href="'.$_SERVER['PHP_SELF'].'?id='.$object->id.'&amp;socid='.$productfourn->fourn_id.'&amp;action=remove_pf&amp;rowid='.$productfourn->product_fourn_price_id.'">'.img_picto($langs->trans("Remove"),'disable.png').'</a>';
+							print '<a href="'.$_SERVER['PHP_SELF'].'?id='.$object->id.'&amp;socid='.$productfourn->fourn_id.'&amp;action=ask_remove_pf&amp;rowid='.$productfourn->product_fourn_price_id.'">'.img_picto($langs->trans("Remove"),'disable.png').'</a>';
 						}
 
 						print '</td>';
diff --git a/htdocs/societe/class/api_thirdparty.class.php b/htdocs/societe/class/api_thirdparty.class.php
index 9c65d08ac43..507d95639e6 100644
--- a/htdocs/societe/class/api_thirdparty.class.php
+++ b/htdocs/societe/class/api_thirdparty.class.php
@@ -370,7 +370,7 @@ class ThirdpartyApi extends DolibarrApi
      * Delete thirdparty
      *
      * @param int $id   Thirparty ID
-     * @return type
+     * @return integer
      * 
      * @url	DELETE thirdparty/{id}
      * @url	DELETE customer/{id}