function doSearch(action, target, page, page_size)
{
  if (!page)
  {
    page = 1;
  }
  if (!page_size)
  {
    page_size = 50
  }
  //$('wait_img').style.display = 'inline';
  
  var url = action + '/' + page + '/' + page_size;
  
  var ajax = new Ajax.Updater({success: target}, url, {onlyLatestOfClass: 'Updater', method: 'get', onFailure: reportError, onComplete: hideImg});    
}

function hideImg() 
{ 
  //$('wait_img').style.display = 'none'; 
}

function reportError(request)
{
  alert(request.responseText);
}