CS2 JS - targetting frame labels within groups

var myDoc =app.activeDocument;

var myFrame = myDoc.textFrames.item("red");

// do something here

myFrame.fillColor = myDoc.colors.item("C=0 M=100 Y=0 K=0");

var myGroups = myDoc.groups;

for ( i = 0; i < myGroups.length; i++) {

   var myItems = myGroups.allPageItems;

   for ( j = 0; j < myItems.length; j++) {

      if (myItems.constructor.name == "TextFrame" && myItems.label == "red") {

         // do something here

         myItems.fillColor = myDoc.colors.item("C=0 M=100 Y=0 K=0");

      }

   }

}