How to use a Javascript with asp.net

Hello all,

I have a Javascript timer that works so so with ASP.net.... I have 2 asp.net buttons for my online game that gives a pause or adds 15sec to the timer. It may be triggered only if you have pauses left (3 per game) and if you have adds left (6 per game).

My timer starts at 180 sec and goes down to 0. When i trigger an ASP.net button to pause my timer, it reset the timer.... Same thing for the adds...

My timer is started onLoad of my Page. Heres how my timer starts in my Timer.js file:
function StartCountDown()
{
      ShowNewTime(iSecond);
      oTimer = window.setTimeout("IncrementSecond();",1000);
}
function IncrementSecond()
{
      iSecond = iSecond - 1;
      
      ShowNewTime(iSecond);
      
      if (iSecond >= 0)
      {
            oTimer = window.setTimeout("IncrementSecond();",1000);
      }else
      {
            
            window.close();
      }
}

I'll be around all day if you dont understand my problem. All i want its to stop/adds time to the timer (ONLY if my variable nbPauses > 0)

Thankee in advance