app/views/spree/admin/gtpay_transactions/query_interface.js.erb
$("td#<%= @gtpay_transaction.id%>.status").html("<%= @gtpay_transaction.status %>");
<% if @gtpay_transaction.successful? %>
$("td#<%= @gtpay_transaction.id%>.action").html('');
alert("Transaction is successfully Completed");
<% elsif @gtpay_transaction.unsuccessful? %>
$("td#<%= @gtpay_transaction.id%>.action").html('');
alert("Transaction is unsuccessful, Reason: <%= @gtpay_transaction.gtpay_tranx_status_msg %>");
<% else %>
alert("No response from Webpay");
<% end %>