Detect Sencha Touch supported phone

gistfile1.js

/**
 * Are we running a sencha touch supported phone? Needed
 * primarily for login page
 * Sencha supports: iPhone, iPod touch, Android, Blackberry 6+
 */
var isSenchaTouchSupportedPhone = function()
{

    var ua = navigator.userAgent;
    var supported = (
        ua.match(/iPhone/i) ||
        ua.match(/iPod/i) ||
        ua.match(/Android/i) ||
        (ua.match(/BlackBerry/i)  && ua.match(/Version\//i)) // BB 6+
    );

    return supported;

}