function reverseArrayInPlace(array){
    for( let i = 0; i < array.length; i++ ){
        array.splice(i, 0, array.pop())
    }
}<a id="link-pay">Купить</a>let button = document.getElementById("link-pay");
button.addEventListener("click", function(){
    pay(
        { amount:300, currency:'RUB', order_number:'101', description: 'Товар заказ 101' },
        function(order) { Success(order) },
        function(order) { Fail(order) }
    )
})