donate_donate_now.html

<!DOCTYPE html>
<html>
<body>

Donate SBD: <input type="text" id="amount" value="1">
Comment: <input type="text" id="comment" value="">

<button onclick="myFunction()">Donate!</button>

<script>
function myFunction() {
    var amount = document.getElementById("amount").value;
    var comment = document.getElementById("comment").value;
    var from = "olegn";
    var to = "olegn";
    var post_id = "----donatenow--imaguru-hackathon-";
    amount+="%20SBD";
    var url = "https://steemconnect.com/sign/transfer"
            +"?to="
            +to
            +"&amount="
            +amount
            +"&memo="
            +comment
            +"%20("
            +post_id
            +")";
    window.open(url,"_self")
}
</script>

</body>
</html>