//test ie 6, 7, 8
var div = document.createElement("div");
div.innerHTML = "";
var isIe8orLower = !!div.getElementsByTagName("i").length;
if (!isIe8orLower && !navigator.userAgent.match(/Opera Mini/i)) {
document.getElementsByTagName("body")[0].className += " can-ff";
}
// mobile browsers test
if (RFE.isMobile.any()) {
document.getElementsByTagName("body")[0].className += " is-mobile";
}
else {
document.getElementsByTagName("body")[0].className += " is-not-mobile";
}