MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Reference page 169

You can also use or for sending variables. The following example uses to append
GET POST GET
variables to a URL:
var firstName:String = "Gus";
var lastName:String = "Richardson";
var age:Number = 92;
myBtn_btn.onRelease = function() {
getURL("http://www.macromedia.com", "_blank", "GET");
};
The following ActionScript uses to send variables in the HTTP header. Make sure you test
POST
your documents in a browser window, because otherwise your variables are sent using :
GET
var firstName:String = "Gus";
var lastName:String = "Richardson";
var age:Number = 92;
getURL("http://www.macromedia.com", "_blank", "POST");
See also
XML.send(), XML.sendAndLoad(), XMLSocket.send()
getURL() 169