var xmlHTTP = false;

try {
	xmlHttp = new ActiveXObject("Msxm12.XMLHTTP")
    }
catch (e)
{
try {
	xmlHttp = new ActiveXObject("Microsoft.XMLHTTP")
    }
catch (E){
	xmlHttp = false
	}
}
	if (!xmlHttp && typeof XMLHttpRequest != 'undefined')
	{
		xmlHttp = new XMLHttpRequest ()
		
	}