setInterval will run over and over by itself, there is no need to call it repeatedly. It is also good to store the reference to a timeout or interval in a variable.

Try this

Code: Select all

 
 
<script type="text/javascript">
var flashObj = document.getElementById("gameJS"); 
var pl = 0;
var timeout = false;
 function showPercent(){
  
          pl++;
  
if(pl == 10){
 
clearInterval(timeout);
}
else {
 timeout = setTimeout("showPercent()",1000);
}
 }</script>

The way your script was working had 10 different intervals running but was only clearing one of them.

This is a timeout so it runs only once.

Cheers,