ie classer

get_classed_el.js

    var getClassedElemets = function(className, getFirst) {
        if (typeof getFirst === undefined) getFirst = false;

        var els = [];
        var all = document.getElementsByTagName('*');
        var arrEls = getArrFromNodeList(all);

        for (var j=0; j < arrEls.length; ++j) {
            var test = arrEls[j];
            if (hasClass(test, className)) {
                if (getFirst) {
                    return test;
                }
                els.push(test);
            }
        }
        return els;
    }