function getXMLHttpRequest()
{
	var request = false;
	
	try {
		request = new XMLHttpRequest();
	} catch(err1) {
		try {
			request = new ActiveXObject('Msxml2.XMLHTTP');
		} catch(err2) {
			try {
				request = new ActiveXObject('Microsoft.XMLHTTP');                
			} catch(err3) {
				request = false;
			}
		}
	}
	return request;
}
edcRequest = getXMLHttpRequest();