Stop setInterval call in JavaScript

setInterval() returns an interval ID, which you can pass to clearInterval():

var refreshIntervalId = setInterval(fname, 10000);

/* later */
clearInterval(refreshIntervalId);

See the docs for setInterval() and clearInterval().

If you set the return value of setInterval to a variable, you can use clearInterval to stop it.

var myTimer = setInterval(...);
clearInterval(myTimer);

You can set a new variable and have it incremented by ++ (count up one) every time it runs, then I use a conditional statement to end it:

var intervalId = null;
var varCounter = 0;
var varName = function(){
     if(varCounter <= 10) {
          varCounter++;
          /* your code goes here */
     } else {
          clearInterval(intervalId);
     }
};

$(document).ready(function(){
     intervalId = setInterval(varName, 10000);
});

I hope that it helps and it is right.

The answers above have already explained how setInterval returns a handle, and how this handle is used to cancel the Interval timer.

Some architectural considerations:

Please do not use "scope-less" variables. The safest way is to use the attribute of a DOM object. The easiest place would be "document". If the refresher is started by a start/stop button, you can use the button itself:

<a onclick="start(this);">Start</a>

<script>
function start(d){
    if (d.interval){
        clearInterval(d.interval);
        d.innerHTML='Start';
    } else {
        d.interval=setInterval(function(){
          //refresh here
        },10000);
        d.innerHTML='Stop';
    }
}
</script>

Since the function is defined inside the button click handler, you don't have to define it again. The timer can be resumed if the button is clicked on again.