//Browser Support Code
function updateNotice(arg){
	var ajaxRequest;
	
	try{
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				return false;
			}
		}
	}
	
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			obj = document.getElementById("top_notice");
			obj.style.display = "none";
		}
	}
	ajaxRequest.open("GET", "includes/ajax_notice_updater.php?"+arg, true);
	ajaxRequest.send(null); 
}