You can use java to get the json as a string and then try and convert it to an object or array/vector to use in your repeat.
Below code will return any webpage into a string, put it in a computedValue and try it out.
var u:java.net.URL = new java.net.URL("http://localhost/mydb.nsf/start.xsp/myjson");
var br:BufferedReader= new java.io.BufferedReader(new java.io.InputStreamReader(u.openStream()));
var tmp="";
while(br.readLine() != null){
tmp+= br.readLine();
}
tmp
Good Luck
Thomas Adrian
http://www.intrapages.com