if (!document.getElementsByClassName) {    document.getElementsByClassNameForMobile = function(search) {        var d = document, elements, pattern, i, results = [];        if (d.querySelectorAll) { // IE8            return d.querySelectorAll("." + search);        }        if (d.evaluate) { // IE6, IE7            pattern = ".//*[contains(concat(‘ ‘, @class, ‘ ‘), ‘ " + search + " ‘)]";            elements = d.evaluate(pattern, d, null, 0, null);            while ((i = elements.iterateNext())) {                results.push(i);            }        } else {            elements = d.getElementsByTagName("*");            pattern = new RegExp("(^|\\s)" + search + "(\\s|$)");            for (i = 0; i < elements.length; i++) {                if ( pattern.test(elements[i].className) ) {                    results.push(elements[i]);                }            }        }        return results;    };} else {    document.getElementsByClassNameForMobile = document.getElementsByClassName;}