var request=null
	function createRequest()
	{
		try
		{
			request=new XMLHttpRequest()
		}
		catch(trymicrosoft)
		{
			try
			{
				request=new ActiveXObject("Msxml2.XMLHTTP")
			}
			catch(othermicrosoft)
			{
				try
				{
					request=new ActiveXObject("Microsoft.XMLHTTP")
				}
				catch(failed)
				{
					request=null
				}
			}
		}
		if(request==null)
		{
			alert("Error creating request object")
		}
	}