diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index b756f0313a5..8d2d80958fb 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -2499,7 +2499,7 @@ class Form
      *     @param 	string		$action      	   	Action
      *	   @param  	array		$formquestion	   	An array with complementary inputs to add into forms: array(array('label'=> ,'type'=> , ))
      * 	   @param  	string		$selectedchoice  	"" or "no" or "yes"
-     * 	   @param  	int			$useajax		   	0=No, 1 or 'xxx'=Yes, 2=Yes but submit page with &confirm=no if choice is No, 'xxx'=preoutput confirm box with div id=dialog-confirm-xxx
+     * 	   @param  	int			$useajax		   	0=No, 1=Yes, 2=Yes but submit page with &confirm=no if choice is No, 'xxx'=Yes and preoutput confirm box with div id=dialog-confirm-xxx
      *     @param  	int			$height          	Force height of box
      *     @param	int			$width				Force width of bow
      *     @return 	string      	    			HTML ajax code if a confirm ajax popup is required, Pure HTML code if it's an html form
@@ -2588,10 +2588,12 @@ class Form
         }
 
 		// JQUI method dialog is broken with jmobile, we use standard HTML.
-		// Note: When using dol_use_jmobile, you must also check code for button use a GET url with action=xxx and output the confirm code only when action=xxx
+		// Note: When using dol_use_jmobile or no js, you must also check code for button use a GET url with action=xxx and check that you also output the confirm code when action=xxx
+		// See page product/fiche.php for example
         if (! empty($conf->dol_use_jmobile)) $useajax=0;
+		if (empty($conf->use_javascript_ajax)) $useajax=0;
 
-        if ($useajax && $conf->use_javascript_ajax)
+        if ($useajax)
         {
             $autoOpen=true;
             $dialogconfirm='dialog-confirm';
diff --git a/htdocs/product/fiche.php b/htdocs/product/fiche.php
index 241a0fb1bc9..330ea0c3273 100644
--- a/htdocs/product/fiche.php
+++ b/htdocs/product/fiche.php
@@ -1262,13 +1262,15 @@ $formquestionclone=array(
 );
 
 // Confirm delete product
-if ($action == 'delete' && empty($conf->use_javascript_ajax))
+if (($action == 'delete' && (empty($conf->use_javascript_ajax) || ! empty($conf->dol_use_jmobile)))	// Output when action = clone if jmobile or no js
+	|| (! empty($conf->use_javascript_ajax) && empty($conf->dol_use_jmobile)))							// Always output when not jmobile nor js
 {
     print $form->formconfirm("fiche.php?id=".$object->id,$langs->trans("DeleteProduct"),$langs->trans("ConfirmDeleteProduct"),"confirm_delete",'',0,"action-delete");
 }
 
 // Clone confirmation
-if ($action == 'clone' && empty($conf->use_javascript_ajax))
+if (($action == 'clone' && (empty($conf->use_javascript_ajax) || ! empty($conf->dol_use_jmobile)))		// Output when action = clone if jmobile or no js
+	|| (! empty($conf->use_javascript_ajax) && empty($conf->dol_use_jmobile)))							// Always output when not jmobile nor js
 {
     print $form->formconfirm($_SERVER["PHP_SELF"].'?id='.$object->id,$langs->trans('CloneProduct'),$langs->trans('ConfirmCloneProduct',$object->ref),'confirm_clone',$formquestionclone,'yes','action-clone',250,600);
 }
@@ -1291,13 +1293,12 @@ if ($action == '' || $action == 'view')
 
         if (! isset($object->no_button_copy) || $object->no_button_copy <> 1)
         {
-            if (! empty($conf->use_javascript_ajax))
+            if (! empty($conf->use_javascript_ajax) && empty($conf->dol_use_jmobile))
             {
                 print '<div class="inline-block divButAction"><span id="action-clone" class="butAction">'.$langs->trans('ToClone').'</span></div>'."\n";
-                print $form->formconfirm($_SERVER["PHP_SELF"].'?id='.$object->id,$langs->trans('CloneProduct'),$langs->trans('ConfirmCloneProduct',$object->ref),'confirm_clone',$formquestionclone,'yes','action-clone',250,600);
             }
             else
-            {
+			{
                 print '<div class="inline-block divButAction"><a class="butAction" href="'.$_SERVER["PHP_SELF"].'?action=clone&amp;id='.$object->id.'">'.$langs->trans("ToClone").'</a></div>';
             }
         }
@@ -1309,23 +1310,22 @@ if ($action == '' || $action == 'view')
     {
         if (empty($object_is_used) && (! isset($object->no_button_delete) || $object->no_button_delete <> 1))
         {
-            if (! empty($conf->use_javascript_ajax))
+            if (! empty($conf->use_javascript_ajax) && empty($conf->dol_use_jmobile))
             {
                 print '<div class="inline-block divButAction"><span id="action-delete" class="butActionDelete">'.$langs->trans('Delete').'</span></div>'."\n";
-                print $form->formconfirm("fiche.php?id=".$object->id,$langs->trans("DeleteProduct"),$langs->trans("ConfirmDeleteProduct"),"confirm_delete",'',0,"action-delete");
             }
             else
-            {
+			{
                 print '<div class="inline-block divButAction"><a class="butActionDelete" href="'.$_SERVER["PHP_SELF"].'?action=delete&amp;id='.$object->id.'">'.$langs->trans("Delete").'</a></div>';
             }
         }
         else
-        {
+		{
             print '<div class="inline-block divButAction"><a class="butActionRefused" href="#" title="'.$langs->trans("ProductIsUsed").'">'.$langs->trans("Delete").'</a></div>';
         }
     }
     else
-    {
+	{
         print '<div class="inline-block divButAction"><a class="butActionRefused" href="#" title="'.$langs->trans("NotEnoughPermissions").'">'.$langs->trans("Delete").'</a></div>';
     }
 }