<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />
<link rel='shortcut icon' href='billmgr.ico' type='image/x-icon' />
<script language='JavaScript'>
function submit() {
document.frm.submit();
}
</script>
</head>
<body onload='submit()'>
<form name='frm' action='https://paysystem/url' method='post'>
<input type='hidden' name='shop_id' value='1'>
<input type='hidden' name='amount' value='1.00'>
</form>
</body>
</html>