diff --git a/app/views/admin/buy_lists/index.html.haml b/app/views/admin/buy_lists/index.html.haml
index 1808240..862b4f4 100644
--- a/app/views/admin/buy_lists/index.html.haml
+++ b/app/views/admin/buy_lists/index.html.haml
@@ -204,7 +204,7 @@
                   %td.mask
                     =check_box_tag :"p_product_ref_ids[]", plr.p_product_ref.id
                   
-                    =number_field_tag "qte[#{plr.p_product_ref.id}]", '', class: "small-input", value: ([bpa_qte - qte_available, 0].max)
+                    =number_field_tag "qte[#{plr.p_product_ref.id}]", '', class: "small-input", value: ([bpa_qte - qte_available, 0].max), min: 0
 
                   %td.mask
                     = bpa_qte
@@ -307,9 +307,11 @@
   }
                   
 :javascript
+  // TOOGLE ORDERS DETAILS - set to hidden
   $('.detail').hide()
   $('.col-detail').hide()
   let state = 0
+  // TOGGLE ORDER LINE DETAILS
   $('.plus').click(function(event){
     if( event.currentTarget.className == "plus") {
       $(event.currentTarget).removeClass('plus').addClass('minus')
@@ -328,6 +330,7 @@
       $('.col-detail').show()
     }
   });
+  // TOOGLE ALL ORDERS DETAILS
   $('.plus-all').click(function(event){
     if( event.currentTarget.className == "mask plus-all") {
       state += $('.plus').length
@@ -351,6 +354,15 @@
       $('.col-detail').show()
     }
   });
+  // CHECK QTE IF QTE CHANGE
+  $('.small-input').change(function(){
+    let checkbox = $(this).closest('td').find("input[type=checkbox]")
+    if (this.value > 0) {
+      checkbox.prop("checked", true)
+    } else {
+      checkbox.prop("checked", false)
+    }
+  })