clickable checked

app/views/origami/other_charges/index.html.erb

@@ -308,6 +308,9 @@ var cashier_type = "<%= @cashier_type %>";
 		// Calculate Other Charges for Payment
 		$("#charge_other").on('click', function(e){
 			e.preventDefault();
+      if($('#charge_other').is(":visible")) {
+        $('#charge_other').prop("disabled",true);
+      }
 			var sale_id = $('#sale-id').text();					
 			var sub_total = $('#order-sub-total').text();
 			var other_charges_items = JSON.stringify(get_other_item_rows());