// Global scanner reference so we can stop or restart it
// 1) Show the scanned code on screen
// 2) Immediately stop the scanner so it doesn't scan multiple times
// Show the "Scan Again" button
// 3) Send the code to the server via AJAX
// Once the page loads, render the scanner
// "Scan Again" button logic
// Clear results text
// Hide the "Scan Again" button
// Re-initialize the scanner