Give timer for change turn

[Vaishnavidespande]

Hi Respected,
I have create a function for timer with setInterval in index.html as follow

<script> function set_timer() { activity_timer=60; game_countdown = setInterval(function(){ activity_timer--; console.log(activity_timer); $("#activity_timer_lower").text(activity_timer); $("#activity_timer_upper").text(activity_timer); if(activity_timer==0){ clearInterval(game_countdown); return activity_timer; } }, 1000); } </script>

and called it onClick of login button and 2 divs added in index.html up and below the dashbord. In this div I have show the timer. Timer is created. But I am not understand how that function implement for change turn and change timer as per turn.

Please give me suggestion