var someArray = new Array (10);
for (var i = 0; i<10; i=i+1)
{
someArray[i] = someWindow.CreateStatic();
someArray[i].X = 10; // <- Message "Syntax Error" has arrived
}
for (var i = 0; i<10; i=i+1)
{
someArray[i] = someWindow.CreateStatic();
var somePlace = someArray[i];
somePlace.X = 10; // <-All ОК
}