= [description, amount];

    if (invoiceidDiv.firstChild.innerHTML.length > 1) {
      invoiceidDiv.style.display = "block";
    }

    var purchase_units = [];
    purchase_units[0] = {};
    purchase_units[0].amount = {};

    function validate(event) {
      return event.value.length > 0;
    }

    paypal.Buttons({
      style: {
        color: 'gold',
        shape: 'rect',
        label: 'paypal',
        layout: 'vertical',
        
      },

      onInit: function (data, actions) {
        actions.