Fast insert Text on HTML

appendHTML

function appendHTML(elm,htm) {
    if (document.createRange) {
        var rangeObj = document.createRange ();
        rangeObj.selectNodeContents(document.body);
        if (rangeObj.createContextualFragment) {
            // all browsers, except IE
            var documentFragment = rangeObj.createContextualFragment(htm);
            elm.insertBefore (documentFragment, elm.firstChild);
        } else {
            // Internet Explorer from version 9
            elm.insertAdjacentHTML("afterBegin", htm);
        }
    } else {
        // Internet Explorer before version 9
        elm.insertAdjacentHTML("afterBegin", htm);
    }
}