var xmlHttp
var id
var result
var map;
var markers = [];
var openInfoWindow;

//--------------------------------------------------------------------------------------

function GetXmlHttpObject()
{
	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;
}