var xmlhttp = false;

function GetHttpRequest()
{
	var xmlHttpObj = false;
	if(window.XMLHttpRequest)
	{
		// IE7+, Firefox, Chrome, Opera, Safari
		xmlHttpObj = new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{
		// IE6, IE5
		try
		{
			xmlHttpObj = new ActiveXObject('Microsoft.XMLHTTP');
		}
		catch(e)
		{
			try
			{
				xmlHttpObj = new ActiveXObject('Msxml2.XMLHTTP');                     
			}
			catch(e){}
		}
	}
	return xmlHttpObj;
}

function AjaxGet(script)
{
	if(!xmlhttp) 
	{
		xmlhttp = GetHttpRequest();
		if(!xmlhttp) return;
	}
	xmlhttp.open('GET',script,true);
	xmlhttp.onreadystatechange = AjaxProcessChange;
	xmlhttp.send(null);
}

function AjaxProcessChange()
{
	if(xmlhttp.readyState == 4)
	{
		if(xmlhttp.status == 200)
		{
			var ret = xmlhttp.responseText;
			StateReady(ret);
		}
	}
}