Given this HTML document:
鉴于此HTML文档：
<!DOCTYPE html>
<html>
<head>
<title>Sencha on Rails</title>
<!-- styles, scripts etc. -->
<meta name="csrf-param" content="authenticity_token" />
<meta name="csrf-token" content="JzrbB8G0gpcKoWcnL8+AllPSXzUVwqDSp5yjgEGqYwk=" />
</head>
<body></body>
</html>
<!DOCT
