Gradient Feather Settings CS3 JS

Hello:

Hi -- Odd thing with the following snippet:

for (var i = (app.activeDocument.rectangles.length - 1); i >= 0; i--) {

var myrec = app.activeDocument.rectangles[i];

          if (myrec.label == "mygraphic") {

myrec.transparencySettings.gradientFeatherSettings.angle = -90;

}

}

The object appears to lose all gradients. However when I check the settings in InDesign, the change to -90 degrees has happened and all the other gradient settings have been preserved. But I have to redo the settings for the change to actually happen on the page.

If i run this with an angle of 45, it works fine.

Any idea what I might be doing wrong?

Is this a problem with negative numbers? If so, Is there any workarounds?

Any help would be greatly appreciated.

thanks in advance