function autoCaptions(){

  container = document.getElementById('main');
  images = container.getElementsByTagName('img');

  for(var i = 0; i < images.length; i++){
    
    img = images[i];

    if (img.getAttribute('title') != '' && img.getAttribute('title') != null){
      img.titletext = img.title;
      img.addEvent('mouseover', function(){
	overlib(this.titletext);
      });
      //img.onmouseover = new Function("return overlib('"+ img.getAttribute('title')+"');");
      img.onmouseout = new Function("return nd();");
      img.removeAttribute('title');
    }

  }
}

window.onload = function(e) {
autoCaptions();
}