function createRequestObject(){

var request_;

var browser = navigator.appName;

if(browser == "Microsoft Internet Explorer"){

request_ = new ActiveXObject("Microsoft.XMLHTTP");

}else{

request_ = new XMLHttpRequest();

}

return request_;

}

var http = createRequestObject();
function getInfo(pagina){
	http.open('get', pagina);
	http.onreadystatechange = handleInfo;
	http.send(null);

	function handleInfo(){

		if(http.readyState == 4){

		var response = http.responseText;

		document.getElementById("my_div").innerHTML = response;

		}

	} 
}