I want to be able to add statements dynamically to a Matrix Table using javascript. Can someone please help me accomplish this? 

Qualtrics.SurveyEngine.addOnload(function() {
    var selectedPark = "${q://QID1/ChoiceGroup/SelectedAnswers/1}";
    var selectedRegion = "${e://Field/SelectedRegion}";

    var entranceChoices = o];

    // Replace this with your own code to dynamically generate the entrance choices based on the selected Park and Region.
    // For example, you could use an API call to retrieve the entrances for the selected Park and Region.
    // This example code just hard-codes some sample entrance choices.
    if (selectedPark = "1997") {
        entranceChoices = �
            { value: "Entrance A1", text: "Entrance A1" },
            { value: "Entrance A2", text: "Entrance A2" },
            { value: "Entrance A3", text: "Entrance A3" }
        ];
    } else if (selectedPark = "1998") {
        entranceChoices =
            { value: "Entrance B1", text: "Entrance B1" },
            { value: "Entrance B2", text: "Entrance B2" }
        ];
    }

    // Set the matrix question choices to the dynamically generated entrance choices
    Qualtrics.SurveyEngine.setEmbeddedData("EntranceChoices", JSON.stringify(entranceChoices));
    element.questionChoices = entranceChoices;
});
 

I believe the very last part is not working.