writecapture2 mutex

gistfile1.js

var mutex = false;
function load_ads()
{  
  if (mutex) {
    setTimeout("load_ads()", 100); // try again in 100 ms?
    return;
  }
  mutex = true;

  if (!$('#pushdown').html()) {
    writeCapture($('#pushdown')[0], function() { setTimeout("load_ads()", 100) } ).write(pushdown_html).close();    
  }
  else if (!$('#leaderboard').html()) {
    writeCapture($('#leaderboard')[0], function() { setTimeout("load_ads()", 100) } ).write(leaderboard_html).close();    
  }
  ....
  mutex = false;
}