// <script>

// THIS FILE HAS BEEN MODIFIED. Original author's copyright text is included
// below. Please respect the original author's license terms if you wish to
// use this script. My modifications are as follows :

//   1) added at_attach_hover() and associated functions for allowing a container
//      element (my intention is a TD) to be restyled when a child element (such
//      as an A element) has mouse-over.
//   2) added new functionallity to the original at_attach() function to do a
//      similar thing when the popup is active.
//   3) linked the two systems so that child popups are immediately hidden when
//      another mouse-over is activated.

// -------------------------------------------------------------------------------

// Copyright (C) 2005 Ilya S. Lyubinskiy. All rights reserved.
// Technical support: http://www.php-development.ru/
//
// YOU MAY NOT
// (1) Remove or modify this copyright notice.
// (2) Distribute this code, any part or any modified version of it.
//     Instead, you can link to the homepage of this code:
//     http://www.php-development.ru/javascripts/smart-forms.php.
//
// YOU MAY
// (1) Use this code on your website.
// (2) Use this code as a part of another product provided that
//     its main use is not creating javascript menus.
//
// NO WARRANTY
// This code is provided "as is" without warranty of any kind, either
// expressed or implied, including, but not limited to, the implied warranties
// of merchantability and fitness for a particular purpose. You expressly
// acknowledge and agree that use of this code is at your own risk.

// If you find my script useful, you can support my site in the following ways:
// 1. Vote for the script at HotScripts.com (you can do it on my site)
// 2. Link to the homepage of this script or to the homepage of my site:
//    http://www.php-development.ru/javascripts/smart-forms.php
//    http://www.php-development.ru/
//    You will get 50% commission on all orders made by your referrals.
//    More information can be found here:
//    http://www.php-development.ru/affiliates.php


// ----- Popup Control ---------------------------------------------------------

function at_display(x)
{
  win = window.open();
  for (var i in x) win.document.write(i+' = '+x[i]+'<br>');
}

// ----- Show Aux -----

function at_show_aux(parent, child)
{
  var p = document.getElementById(parent);
  var c = document.getElementById(child);
  var t = p["at_target"];

  var top  = (c["at_position"] == "y") ? t.offsetHeight : 0;
  var left = (c["at_position"] == "x") ? t.offsetWidth +1 : 0;

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

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

// ----- Show -----

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

  t = this["at_target"];
  t.className = t["at_hover_className"];

  at_show_aux(p.id, c.id);

  clearTimeout(c["at_timeout"]);
}

// ----- Hide -----

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

  c["at_timeout"] = setTimeout("at_hide_callback('"+c.id+"')", 333);
}

function at_hide_current()
{
  at_hide_now(document["at_current"]);
}

function at_hide_now(c)
{
	if (c != null)
	{
	  c.style.visibility = 'hidden';
	
	  t = c["at_target"];
	  t.className = t["at_original_className"];
	}
}

function at_hide_callback(id)
{
	c = document.getElementById(id);
	at_hide_now(c);
}

// ----- Click -----

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

  if (c.style.visibility != "visible") at_show_aux(p.id, c.id);
  else c.style.visibility = "hidden";

  return false;
}

// ----- Attach -----

// PARAMETERS:
// parent   - id of visible html element
// child    - id of invisible html element that will be dropdowned
// showtype - "click" = you should click the parent to show/hide the child
//            "hover" = you should place the mouse over the parent to show
//                      the child
// position - "x" = the child is displayed to the right of the parent
//            "y" = the child is displayed below the parent
// cursor   - Omit to use default cursor or check any CSS manual for possible
//            values of this field

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

  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;
  
  p["at_target"] = t;
  c["at_target"] = t;
  
  t["at_original_className"] = t.className;
  t["at_hover_className"] = hoverstyle;

  c.style.position   = "absolute";
  c.style.visibility = "hidden";

  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;
  }
}

function at_attach_hover(source, target, hoverclass)
{
  s = document.getElementById(source);
  t = document.getElementById(target);
  
  s["at_hover_target"] = t;
  t["at_original_className"] = t.className;
  t["at_hover_className"] = hoverclass;
  
  s.onmouseover = at_hover_mouseover;
  s.onmouseout = at_hover_mouseout;
}

function at_hover_mouseover()
{
  at_hide_current();
  t = this["at_hover_target"];
  t.className = t["at_hover_className"];
}

function at_hover_mouseout()
{
  t = this["at_hover_target"];
  t.className = t["at_original_className"];
}