//
// A simple funcition that will call xhSend4()
//
function just_a_test() {
        resposta = xhSend4('&i=i');
}


function xhSend4(string){
	function createXMLHttpRequest() {
		try{ return new ActiveXObject("Msxml2.XMLHTTP"); }catch(e){}
		try{ return new ActiveXObject("Microsoft.XMLHTTP"); }catch(e){}
		try{ return new XMLHttpRequest(); }catch(e){}
		alert("XMLHttpRequest not supported");
		return null;
	}
	var xhReq = createXMLHttpRequest();
	xhReq.open("post","index.php",true);
	xhReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	xhReq.onreadystatechange = function do_readyStateChange() {
		if (xhReq.readyState == 4) {
                        //
                        // How can i pass back this variable called "resposta" to the function just_a_test()
                        //
			reposta = xhReq.responseText;
		}
	}
	xhReq.send(string);
}