LP#2080899: BOOPAC: Disable Submit Payment Button when no amount selected

Signed-off-by: Michele Morgan <[email protected]>
Signed-off-by: Llewellyn Marshall <[email protected]>
Signed-off-by: Jane Sandberg <[email protected]>

Author: mmorgannoble

Open-ILS/src/templates-bootstrap/opac/myopac/charges.tt2

@@ -245,6 +245,7 @@ $( document ).ready(function() {
     });
     $("#total").val(amount);
     $("#selectPay").html('<i class="fas fa-money-bill-wave" aria-hidden="true"></i> [% l('Pay Selected Charges') %] - $' + amount.toFixed(2));
+    $("#selectPay").prop('disabled', (amount == 0));
 });
 });