title: Bus Seating Map
body: <p><a href="https://www.jqueryscript.net/chart-graph/Full-featured-Seating-Chart-Plugin-With-jQuery-Seat-Charts.html" rel="nofollow noreferrer">Full-featured Seating Chart Plugin With jQuery - Seat Charts</a></p>
  
  <p>Currently the checkout button in this code is working when someone try to click it without selecting any of the seats displayed in the chart. Therefore, I want to  restrict it to fade the checkout button until someone is selecting a seat and show after selecting a seat.</p>