function showDetails(imageName, winWidth, winHeight)
{
	if(!winWidth || !winHeight)
	{
		winWidth = 400;
		winHeight = 300;
	}
	winHeight += 60;
	winWidth += 30;
	imgprev = window.open('/images/' + imageName,'imgprev','toolbar=no,location=no,status=no,menubar=no,scrollbars=0,resizable=1,copyhistory=no,width=' + winWidth + ',height=' + winHeight); 
	imgprev.resizeTo(winWidth, winHeight);
	imgprev.focus();
}

function up_button()
{
  var m = location.toString();
  m = m.substring(m.indexOf("/")+1);
  m = m.split("/");
  if(m.length > 3)
  {
    m = m[m.length - 2];
	if(m != "gallery")
	{
	  document.writeln("<a href=../" + m + ".php>Up</a>");
	}
	else
	{
	  document.writeln("&nbsp;");
	}
  }
  else if(m.length = 3 && m[2] != "index.php" && m[2] != "")
  {
    document.writeln("<a href=index.php>Up</a>");
  }
}