title: Changing interval time to random?
body: <p>Im looking for a way to change the way my javascript number counter is working. Now it just counts up every second but I want it to count at random times between 1 second and 15 seconds.</p>
  
  <pre><code>function startCount(){
      timer = setInterval (count, 1000);  
  }
  
  function count(){
      var el = document.getElementById('counter');
      var currentNumber = parseFloat(removeCommas(el.innerHTML));
      el.innerHTML = addCommas(currentNumber+1);
  }
  
  function addCommas(nStr){
      nStr += '';
      x = nStr.split('.');
      x1 = x[0];
      x2 = x.length &gt; 1 ? '.' + x[1] : '';
      var rgx = /(\d+)(\d{3})/;
  
      while (rgx.test(x1)) {
          x1 = x1.replace(rgx, '$1' + ',' + '$2');
      }
  
      return x1 + x2 + '.00';
  }
  
  function removeCommas(aNum){
      //remove any commas
      aNum=aNum.replace(/,/g,"");
  
      //remove any spaces
      aNum=aNum.replace(/\s/g,"");
  
      return aNum;
  }
  </code></pre>
  
  <p>Can someone help me change the count time to random numbers?</p>