newscript.txt

<!DOCTYPE html>
<html>
<body>

<p>A counter that you can Start/Stop/Pause</p>
<p id="timer"></p>

<button onclick="ReStartFunction()">ReStart</button>
<button onclick="StopFunction()">Stop</button>
<button id="pause" onclick="PauseFunction()">pause</button>

<script>

var pause=0;
var count=0;
var counter=setInterval(timer, 1000); 
var stoped=0
function timer()
{
  count=count+1;
  document.getElementById("timer").innerHTML=count + " secs"; 
}

function StopFunction()
{
  clearInterval(counter);
  window.count=0;
  window.pause=0;
  document.getElementById("pause").innerHTML="Pause"
  window.stoped=1
  document.getElementById("timer").innerHTML=count + " secs";
}

function ReStartFunction()
{
  if (counter)
  {
    clearInterval(counter);
    window.pause=0;
    window.count=0;
    window.stoped=0
    window.counter=setInterval(timer, 1000); 
    count=count+1;
    document.getElementById("pause").innerHTML="Pause"
    document.getElementById("timer").innerHTML=count + " secs"; 
  }
}

function PauseFunction()
{
  if (stoped==0)
  { 
    if (pause==0) 
    {
      clearInterval(counter);
      document.getElementById("pause").innerHTML="Resume"
      pause=1;
      return;
    }

  if (pause==1) 
    {
      window.counter=setInterval(timer, 1000); 
      document.getElementById("timer").innerHTML=count + " secs"; 
      document.getElementById("pause").innerHTML="Pause"
      pause=0;
      return;
    }
  }
  return;
}

</script>

</body>
</html>