// Copyright (C) 2005-2008 Ilya S. Lyubinskiy. All rights reserved.
// Technical support: http://www.php-development.ru/
//
// YOU MAY NOT
// (1) Remove or modify this copyright notice.
// (2) Re-distribute this code or any part of it.
//     Instead, you may link to the homepage of this code:
//     http://www.php-development.ru/php-scripts/search-engine.php
// (3) Use this code as part of another product.
//
// YOU MAY
// (1) Use this code on your website.
//
// NO WARRANTY
// This code is provided "as is" without warranty of any kind.
// You expressly acknowledge and agree that use of this code is at your own risk.


// ***** at_show_aux ***********************************************************

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

  var top  = (c["at_position"] == "y") ? p.offsetHeight+3 : 0;
  var left = (c["at_position"] == "x") ? p.offsetWidth +3 : 0;

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

  c.style.position = "absolute";
  c.style.display  =    "block";
  c.style.top      =   top+"px";
  c.style.left     =  left+"px";
}


// ***** at_show ***************************************************************

function at_show()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);

  at_show_aux(p.id, c.id);
  clearTimeout(c["at_timeout"]);
}


// ***** at_hide ***************************************************************

function at_hide()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);

  c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.display = 'none'", 10);
}


// ***** at_click **************************************************************

function at_click()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);

  if (c.style.display != "block") at_show_aux(p.id, c.id); else c.style.display = "none";
  return false;
}


// ***** at_attach *************************************************************

function at_attach(parent, child, showtype, position, cursor)
{
  var p = document.getElementById(parent);
  var c = document.getElementById(child );

  p["at_parent"]    = p.id;
  c["at_parent"]    = p.id;
  p["at_child"]     = c.id;
  c["at_child"]     = c.id;
  p["at_position"]  = position;
  c["at_position"]  = position;

  c.style.dispay    = "none";
  c.style.position  = "absolute";

  if (cursor != undefined) p.style.cursor = cursor;

  switch (showtype)
  {
    case "click":
      p.onclick     = at_click;
      p.onmouseout  = at_hide;
      c.onmouseover = at_show;
      c.onmouseout  = at_hide;
      break;
    case "hover":
      p.onmouseover = at_show;
      p.onmouseout  = at_hide;
      c.onmouseover = at_show;
      c.onmouseout  = at_hide;
      break;
  }
}