Hello Everybody,
I want to make some changes on the code to make the video stopping when the tab is not active. I know that this is the JS code that helps to detect if the tab has been changed:

$(window).focus(function() {
    //do something
});

$(window).blur(function() {
    //do something
});

Dear customer,

Can you please give us a link to your video player page and tell us what you want more detailed ?

Sorry, I can't give a link because i'm using it in localhost.
I'm using the Spider Video Player Plugin for Wordpress. I want the video to stop playing when the user change the tab in browser

Dear customer,

Unfortunately WordPress Spider video player doesn't have such functionality.