var matches = (function(doc) {
return doc.matchesSelector || doc.webkitMatchesSelector || doc.mozMatchesSelector || doc.oMatchesSelector || doc.msMatchesSelector;
})(document.documentElement);
var CustomEvent = function (event, params) {
params = params || {bubbles: false, cancelable: false, detail: undefined}; var evt = document.createEvent('CustomEvent'); evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail); return evt;
};
CustomEvent.prototype = window.CustomEvent.prototype;
window.CustomEvent = CustomEvent;