text: var n_food = document.querySelector('#foodquantity');
  var n_drink = document.querySelector('#drinkquantity'); 
  var message_text = '';
  var price = 0;
  const foodprice = 30000;
  const drinkprice = 10000;
  
  const minusbtn1 = document.querySelector('#minus-btn1');
  minusbtn1.addEventListener('click', (e) => {
      e.preventDefault;
      console.log('Clicking minus 1!!')
      var num = parseInt(n_food.value)
      if (num > 0)
      {
          num = num-1
          n_food.value = `${num}`;
      }
      else
      {
          n_food.value = 0;
      }
  });
  
  const minusbtn2 = document.querySelector('#minus-btn2');
  minusbtn2.addEventListener('click', (e) => {
      e.preventDefault;
      console.log('Clicking minus 2!!')
      var num = parseInt(n_drink.value)
      if (num > 0)
      {
          num = num-1
          n_drink.value = `${num}`;
      }
      else
      {
          n_drink.value = 0;
      }
  });
  
  const plusbtn1 = document.querySelector('#plus-btn1');
  plusbtn1.addEventListener('click', (e) => {
      e.preventDefault;
      console.log('Clicking plus 1!!')
      var num = parseInt(n_food.value)
      num = num+1
      n_food.value = `${num}`;
  });
  
  const plusbtn2 = document.querySelector('#plus-btn2');
  plusbtn2.addEventListener('click', (e) => {
      e.preventDefault;
      console.log('Clicking plus 2!!')
      var num = parseInt(n_drink.value)
      num = num+1
      n_drink.value = `${num}`;
  });