[CS5 - JS] wrong error app.activeDocmunet = there is no document

Question

Hi all
I call a function by onClick function in a palette Window.
In this function i try to check "app.documents.length" and the result is 1
But, if I check "app.activeDocument" the result is "there is no document"
If I set a "MyDoc = app.documents[0]" and I check MyDoc.path, again the result is "there is no document" even if MyDoc is a document.
it's a nonsense
Someone can help me?

Answer 1

With Illustrator, you should use BridgeTalk in a palette Window, you function will be like this:
function onClick(){
     var btMsg = new BridgeTalk();
     btMsg.target = "illustrator";
     btMsg.body = "app.activeDocument.save();";//or do something else.
     btMsg.onResult = function( resultMsg ) {
          $.writeln("Result = " + resultMsg.body);
     btMsg.onError = function( errorMsg ) {
          $.writeln("Error = " + errorMsg.body);
     btMsg.send();