public ActionSetProperty()
{
_StackOps = new StackChange[ 3 ];
_StackOps[ 0 ] = new StackPop( AVM1DataTypes.AVM_ANY ); // value
_StackOps[ 1 ] = new StackPop( AVM1DataTypes.AVM_String ); // index
_StackOps[ 2 ] = new StackPop( AVM1DataTypes.AVM_String ); // target
}