jQuery attachment types test cases 3 and 4

gistfile1.js

function generateUniqueClasses(attachEventDirectly, elementsToGenerate) {               
    var generateFunction = function() {
        var containerElement = $("#container");
        containerElement.html("");
        for (var i=0; i < elementsToGenerate; i++) {
            var element = $('<div id="element' + i + '" class="differentClassItem' + i + '"><a href="#">click me</a> &nbsp;</div>');
            containerElement.append(element);
            if (attachEventDirectly) {
                element.click(callbackFunction);
            } else {
                containerElement.on('click', ".differentClassItem" + i, callbackFunction);
            }
        }
    };
    timeAction(this, generateFunction);
}