function on(){
	var d = new Date();
	var uri = "rss_news.php";
	var param = "ad" +  d.getMilliseconds();
	var targetId="rssNews"; 
	var e = document.getElementById(targetId);
	if (e) {
		new Ajax.Updater(targetId,uri,{method:'get',postBody:param});
	}

}
if(window.addEventListener) {
	window.addEventListener("load", on, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload",on);
}