REST API - List Applications

REST API - List Applications

Hi guys,


I tried to follow this:  http://www.zoho.com/creator/help/api/rest-api/rest-api-list-applications.html 


In here: 
<form method="POST" action="https://creator.zoho.com/api/xml/applications/limit=20">
<input type="hidden" name ="authtoken" value="************">
<input type="hidden" name ="scope" id="scope" value="creatorapi">
<input type="submit" value="List applications">
</form>

How can I make this get/post request?
I tried variations of:
  1. requestMap = map();
  2. requestMap.put("authtoken", "valid authtoken ************");
  3. requestMap.put("scope", "creatorapi");
  4. responseString = getUrl("https://creator.zoho.com/api/xml/applications/limit=20", requestMap,false);
  5. alert(responseString);

And get this:

{"responseCode":"200","responseText":" Specified ticket [null] is no longer valid. Provide a correct one. 2913 "}
 


Any help is appreciated,

Regards,
Idan