How can I realize old version AJax function?

[wangsuya]

Hello everyone

I try to Ajax by mooTree which was made by mootools1.2.1
and I try to find Ajax in document I did not find. How Can I
realize bellow:

var myjson = new Object();

var b = new String;
var c = new String;
b = '111';
c = 'hikisu';
myjson[c] = b;
var url = "test.php";
var myajax = new Ajax(url,
{method:'post',postBody:Object.toQuerySt
ring(myjson),onComplete:function(mystring){
alert(mystring);
}}).request();


I want to send data to test.php and receive data from test.php.
Old version quite worked,
how to do this in new version?

Thanks by advance.

Wang Suya