如果发生某种情况，如何禁用按钮

Question

如果发生某种情况，如何禁用按钮。示例我的order_status是'已接受'，然后将禁用'接受'按钮。如何使用javascript禁用它？

下面是我的代码，但它没有安静工作，我不知道为什么。

<div class="form-group">
 <label for="order_status" class="col-sm-2 control-label" style="width:20%;">Order Status</label> 
 <input type="text"  class="form-control" name="order_status" id="t_order_status" style="width:80%;" placeholder="" value="" required="required" readonly>
 </div>

<button type="button" input style="background-color:#4CAF50;color:white;border-color:#000000;" name="submitDelivered" id="submitDelivered" class="btn btn-success" data-toggle="modal" data-target="#myDeliverModal" onclick="deliver('<?= $_POST['order_id'] ?>')" > Delivered </button>
<button type="button" input style="background-color:#0000FF;color:white;border-color:#000000;" name="submitAccept" id="submitAccept" class="btn btn-success" data-toggle="modal" data-target="#myAcceptModal" onclick="accept('<?= $_POST['order_id'] ?>')"  > Accept </button>
 <button type="button" style="background-color:#FFFF00;color:black;border-color:#000000;" class="btn btn-success" data-toggle="modal" data-target="#myDropdown" onclick="send('<?= $_POST['order_id'] ?>')"> Send </button> 
<button type="button" input style="background-color:#f44336;color:white;border-color:#000000;" name="submitCancel" id="submitCancel" class="btn btn-success" data-toggle="modal" data-target="#myCancelModal" onclick="cancel('<?= $_POST['order_id'] ?>')">Cancel</button> 

<script>
 function viewOrder(order_id, order_id, user_id, order_date, order_time, order_deliveryCharge, order_totalAmount, address, coordinates, driver_number, order_status) {
 document.getElementById("t_order_id").setAttribute("value", order_id); 
 document.getElementsByName("ORDER_ID_MODAL_2")[0].setAttribute("value", order_id);
 document.getElementById("t_user_id").setAttribute("value", user_id);
 document.getElementById("t_order_date").setAttribute("value", order_date); 
 document.getElementById("t_order_time").setAttribute("value", order_time); 
 document.getElementById("t_order_deliveryCharge").setAttribute("value", order_deliveryCharge); 
 document.getElementById("t_order_totalAmount").setAttribute("value", order_totalAmount); 
 document.getElementById("t_address").setAttribute("value", address);
 document.getElementById("t_coordinates").setAttribute("value", coordinates); 
 document.getElementById("t_drivers_number").setAttribute("value", driver_number); 
 document.getElementById("t_order_status").setAttribute("value", order_status);
 document.getElementById("ORDER_MODAL_ACCEPT").setAttribute("value", order_id);
 document.getElementById("ORDER_MODAL_DELIVER").setAttribute("value", order_id);
 document.getElementById("ORDER_MODAL_CANCEL").setAttribute("value", order_id); 
 }
function accept() { 

    var x = document.getElementById("t_order_status").value;

 if(x == "Accepted"){
     document.getElementById("submitAccept").disabled = true;
 }
}
</script>

请帮我解决我的问题。如果你有其他建议/想法我怎么能解决这个问题随时评论家伙。我非常感谢很多人，谢谢！