True for asynchronous request (default) or
Normally AW.HTTP.Request makes asynchronous calls and returns results after some delay in response() callback. Setting
false makes a synchronous request and the request() method does not return until the result is received and the response() method is called.
var value = obj.getAsync(); obj.setAsync(value);
var req = new AW.HTTP.Request; req.setURL('<url>'); req.setAsync(false); // make synchronous request req.request(); alert(req.getResponseText());