function initPage() {
    var _bg_div = document.getElementById('title-image');
    if (_bg_div) {
		var _images = _bg_div.getElementsByTagName('img');
		var _randomItem = Math.floor(Math.random()*_images.length);
		_images[_randomItem].className += ' active';
	}
}

if (window.addEventListener)
	window.addEventListener("load", initPage, false);
else if (window.attachEvent)
	window.attachEvent("onload", initPage);