function CreateGetHttpRequest(url, callback_func)
{
	var req = CreateHttpRequest();
	InitiGetHttpRequest(url,req,callback_func);

	return req;
}

function InitiGetHttpRequest(url, req, callback_func)
{
	if(req)
	{
		req.onreadystatechange = callback_func;
		req.open("GET", url, true);
	}

	return req;
}

function CreateHttpRequest()
{
	var req = false;
	if(window.XMLHttpRequest)
	{
	    try
		{
			req = new XMLHttpRequest();
		}
		catch(e)
		{
			req = false;
		}
	}
	else if(window.ActiveXObject)
	{
		try
		{
			req = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e)
		{
			try
			{
				req = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e)
			{
				req = false;
			}
		}
	}
	
	return req;
}