Sending score to the LMS using Javascript

I have made some slides with interactions that produced scores. I need help on sending the score to the LMS. 

Below are the code that I used to do this which shows up on one of the treads and a video in youtube.

 

var player = GetPlayer();

var lmsAPI = parent;

lmsAPI.SetScore(player.GetVar(“markTotal2”), 100, 0);

SetStatus(“completed”);

 

I have tried it with and without result slide. Is there a specific way for this to work that I might have missed? such as the tracking which I used number of slides or specific place where I should put the trigger.

 

Hope you guys can help me.