将clickAmount数量值传递给click事件

Question

如何将paidAmount变量值传递给我在这里停留的金额对象，而不是在函数内部获取全局变量

var options = {
    "key": 'rzp_test_sss',
    "amount": "200", // 2000 paise = INR 20
    "name": "FeastBy",
    "description": "Purchase Description",
    "image": "/your_logo.png",
    "handler": function (response){
        alert(response.razorpay_payment_id);
    },
    "prefill": {
        "name": "Harshil Mathur",
        "email": "harshil@razorpay.com"
    },
    "notes": {
        "address": "Hello World"
    },
    "theme": {
        "color": "#F37254"
    }
};
var rzp1 = new Razorpay(options);

document.getElementById('rzp-payment').onclick = function(e){
    var payableAmount = document.formxml[0].razorPayAmount.value;
    alert(payableAmount);
    rzp1.open();
    e.preventDefault();
}

建议