function logoff()
{
		xmlHttp=GetXmlHttpObject();
		if (xmlHttp==null)
			{
			alert ("Your browser does not support AJAX!");
			return;
			} 
		var url="logoff.php";		
		
		xmlHttp.onreadystatechange=function()
		{
			if (xmlHttp.readyState==4)
			{ 			
			//document.getElementById("total2").innerHTML=xmlHttp.responseText;	
			document.location = 'http://www.microbeerclub.com.au/index.php';
			}
		}
		xmlHttp.open("GET",url,true);
		xmlHttp.send(null);	
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}