Using AS3 to connect to a payment page

Sorry about the delated response KGLAD.  It has been a truly lousy day.   Yes, I did use your code and what was traced back was the html page code I posted.  (I've been told by authorize.net not to post the LinkId #.  I've also been told that there services are only available to an html compatible website.  Real pr_cks.)   

So I used this code of yours:

assign your button an instance name (in the properties panel), if it was placed on-stage in the authoring environment.  eg, submit_btn.  then use:

submit_btn.addEventListener(MouseEvent.CLICK,f);

function f(e:MouseEvent):void{

var urlLoader:URLLoader=new URLLoader();

//urlLoader.dataFormat=depends on the dataformat received from that aspx file.  if text, you can leave this commentd-out.

urlLoader.addEventListener(Event.COMPLETE,completeF);

var urlReq:URLRequest = new URLRequest("https://Simplecheckout.authorize.net/payment/CatalogPayment.aspx");

urlReq.method="POST";

var urlVar:URLVariables=new URLVariables();

urlVar.LinkId="00000=00000-0000-abcd-etc"; // make sure you change this to your unique identifier.

urlReq.data=urlVar;

urlLoader.load(urlReq);

}

function completeF(e:Event):void{

trace(e.target.data);

}

In the output panel  I got the html text I posted above.  If I use that text to create another html page and open it in a browser I get a message "Service not avaiable".   I'm sorry if my ignorance is driving you nuts.

I created an interim solution, creating a seperate html page that has the code pasted in.  It's a 2 click solution but it works-sort of.  If you go to:   http://www.workinglightstudios.com/Norma   you'll see an html page that I created with an 'enter' button that has a few words on the page and in the header for bots to recognize.  Clicking that leads you to what was a working preloader swf, it does work but for some reason the error text and loading animation hangs, but be patient and the site will load up.  I'll fix the preloader tomorrow.  Go to the Contacts page and click the payment button, then click again and voil'a.

var urlLoader:URLLoader=new URLLoader();

//urlLoader.dataFormat=depends on the dataformat received from that aspx file.  if text, you can leave this commentd-out.

urlLoader.addEventListener(Event.COMPLETE,completeF);

var urlReq:URLRequest = new URLRequest("https://Simplecheckout.authorize.net/payment/CatalogPayment.aspx");

urlReq.method="POST";

var urlVar:URLVariables=new URLVariables();

urlVar.LinkId="00000=00000-0000-abcd-etc"; // make sure you change this to your unique identifier.

urlReq.data=urlVar;

urlLoader.load(urlReq);

function completeF(e:Event):void{

trace(e.target.data);

}

use the urlloader class to call https://Simplecheckout.authorize.net/payment/CatalogPayment.aspx.  you'll use the urlvariables class to assign data to your urlrequest.