function xpreviewAdvice(adviceid, divsection) {
    http.open('get', '../html/advicelist.php?' 
		+ 'ajaxPreviewAdvice=1'
		+ '&adviceid='+adviceid
		+ '&divsection='+divsection);
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function showdiv(parent, child)
{
  var p = document.getElementById(parent);
  var c = document.getElementById(child);

  var top  = (c["at_position"] == "y") ? p.offsetHeight+2 : 0;
  var left = (c["at_position"] == "x") ? p.offsetWidth +2 : 0;

  for (; p; p = p.offsetParent)
  {
    top  += p.offsetTop;
    left += p.offsetLeft;
  }

  var adviceid = child.substring(child.indexOf('prnt')+5, child.length)
  xpreviewAdvice(adviceid, child);

  c.style.position   = "absolute";
  c.style.top        = top +'px';
  c.style.left       = left+'px';
  c.style.visibility = "visible";
}