function detailSwitchImg(img_src,active_id,alt)
{
 img = document.getElementById('ArticlePreloadImageMain');
 img.style.display='none';
 img.onload=detailImgLoaded;
 img.src=img_src;
 img.alt=alt;
 for(var i=0; i < 5; i++)
 {
  var id= 'ArticleImage'+i;
  var el= document.getElementById(id);
  if(el == null) continue;
  if(id == active_id) el.className='ImageSelected';
  else el.className='ImageAdditional';
 }
 return false;
}

function detailImgLoaded()
{
 document.getElementById('ArticlePreloadImageMain').style.display='block';
}