// 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/javascripts/dropdown.php
//
// YOU MAY
// (1) Use this code on your website.
// (2) Use this code as part of another product.
//
// 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.


// ***** Popup Control *********************************************************

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

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

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



//Navigation table
function writeJS(){
var str='';
str+='<table summary="" class="" alaing="center" border="0" cellpadding="0" cellspacing="0" width="100%">';
str+='<tbody>';
str+='<tr>';
str+='<td style="text-align: center; font-weight: bold; color: white; background-color: rgb(76, 120, 157);" onmouseover="style.backgroundColor=\'#6199C9\';" onmouseout="style.backgroundColor=\'#4C789D\'"><a href="default.htm">Home<\/a><\/td> ';
str+='<!-- Begin About Drop -->';
str+='<td style="text-align: center; font-weight: bold; color: white; background-color: rgb(76, 120, 157);" onmouseover="style.backgroundColor=\'#6199C9\';" onmouseout="style.backgroundColor=\'#4C789D\'">';
str+='<div id="sample_attach_menu_About" class="sample_attach"><a href="about.htm">About<\/a><\/div>';
str+='<div id="sample_attach_menu_child_About">';
str+='<a class="sample_attach" href="Contact.htm">Contact<\/a>';
str+='<a class="sample_attach" href="Testimonials.htm">Testimonial<\/a>';
str+='<a class="sample_attach" href="faq.htm">FAQ<\/a>';
str+='<\/div>';
str+='<script type="text\/javascript">at_attach("sample_attach_menu_About", "sample_attach_menu_child_About", "hover", "y", "pointer");<\/script>';
str+='<\/td>';
str+='<!-- End Abour Drop -->';
str+='<!-- Begin Treks Drop -->';
str+='<td style="text-align: center; font-weight: bold; color: white; background-color: rgb(76, 120, 157);" onmouseover="style.backgroundColor=\'#6199C9\';" onmouseout="style.backgroundColor=\'#4C789D\'">';
str+='<div id="sample_attach_menu_Treks" class="sample_attach" >Treks<\/div>';
str+='<div id="sample_attach_menu_child_Treks">';
str+='<a class="sample_attach" href="treklist.htm">List<\/a>';
str+='<a class="sample_attach" href="register_off.htm">Register<\/a>';
str+='<\/div>';
str+='<script type="text\/javascript">at_attach("sample_attach_menu_Treks", "sample_attach_menu_child_Treks", "hover", "y", "pointer");<\/script>';
str+='<\/td>';
str+='<!-- End Abour Drop -->';
str+='<td style="text-align: center; font-weight: bold; color: white; background-color: rgb(76, 120, 157);" onmouseover="style.backgroundColor=\'#6199C9\';" onmouseout="style.backgroundColor=\'#4C789D\'"><a href="register_off.htm">Register<\/a><\/td>';
str+='<td style="text-align: center; font-weight: bold; color: white; background-color: rgb(76, 120, 157);" onmouseover="style.backgroundColor=\'#6199C9\';" onmouseout="style.backgroundColor=\'#4C789D\'"><a href="gallery.htm">Gallery<\/a><\/td>';
str+='<td style="text-align: right; font-weight: bold; color: rgb(45, 72, 114); background-color: rgb(76, 120, 157);" onmouseover="style.backgroundColor=\'#6199C9\';" onmouseout="style.backgroundColor=\'#4C789D\'"><a href="http:\/\/bus.umich.edu\/" rel="external">STEPHEN M. ROSS';
str+='SCHOOL OF BUSINESS<\/a><\/td>';
str+='<\/tr>';
str+='<\/tbody>';
str+='<\/table>';
document.write(str);
}

// ***** 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.visibility = 'hidden'", 150);
}

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

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

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

// PARAMETERS:
// parent   - id of the parent html element
// child    - id of the child  html element that should be droped down
// showtype - "click" = drop down child html element on mouse click
//            "hover" = drop down child html element on mouse over
// position - "x" = display the child html element to the right
//            "y" = display the child html element below
// cursor   - omit to use default cursor or specify CSS cursor name

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.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;
  }
}