CS6 iconbutton issue

Question

var w = new Window ("palette");
var f = File ("~/Desktop/Script tests/Icons/folder.png");
var a = File ("~/Desktop/Script tests/Icons/accept.png");
var button = w.add ("iconbutton", undefined,ScriptUI.newImage  ( f,undefined, a, undefined), {style:'toolbutton', toggle:true});
w.show ();
The following code doesn`t work propely in CS6.
Icon button doesn`t switch to accept.png. There is always folder.png icon.
CC and CC2014 versions works fine.
Does anyone have the same issue?

Answer 1

Thank you David. Just wanted to know for sure.
I`ll post my solution below if someone else will have the same issue.
var w = new Window ("palette");
var f = File ("~/Desktop/Script tests/Icons/folder.png");
var a = File ("~/Desktop/Script tests/Icons/accept.png");
if(parseFloat(app.version) < 12){
var button = w.add ("iconbutton", undefined,ScriptUI.newImage  ( f, {toggle:true});
button.onClick = function(){
    (button.value == false)?button.icon = ScriptUI.newImage(f) : button.icon = ScriptUI.newImage(a);    
    }else{
var button = w.add ("iconbutton", undefined,ScriptUI.newImage  ( f,undefined, a, undefined), {style:'toolbutton', toggle:true});
w.show ();