var ImageChange = Class.create();
ImageChange.prototype = {
    initialize: function(className, parentElement) {
        var elements = document.getElementsByClassName(className, parentElement);
        for (var i = 0, len = elements.length; i < len; i++) {
            Event.observe(elements[i], 'click', this.addImageEvent.bindAsEventListener(this));
            Event.observe(elements[i], 'keypress', this.addImageEvent.bindAsEventListener(this));
        }
    },
    addImageEvent: function(event) {
	    var element = Event.element(event);
        var src = element.getAttribute('src');
		var image = document.getElementById('main-image');
        image.src = src;
    }
};


Event.observe(window, 'load', function () {
    new ImageChange('ic');
});