function createRequestObject() { 

	var req; 

	if(window.XMLHttpRequest) { 
		// Firefox, Safari, Opera... 
		req = new XMLHttpRequest(); 
	} 
	else if(window.ActiveXObject) { 
		// Internet Explorer 5+ 
		req = new ActiveXObject("Microsoft.XMLHTTP"); 
	} 
	return req; 
}

// Make the XMLHttpRequest object 
var http = createRequestObject();
var http2 = createRequestObject();
var http3 = createRequestObject();
var http4 = createRequestObject();