// 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 op = p;
  var c = document.getElementById(child);
  c.style.display = "block";

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

  for (; p; p = p.offsetParent)
  {
    top  += p.offsetTop;
    left += p.offsetLeft;
  }
  
  if ($(op).hasClass('watershed-right'))
  {
	var useWidth = $(c).width();
	
	// For some strange reason, $(c).width() is returning crazy values in ie. Workaround, manually calculate width:
	if ($.browser.msie)
	{
		useWidth = $(c).children("div.link-wrapper").width();
		if ($(c).hasClass('offset'))
			useWidth += $(c).children("div.menu_extensions_wrapper").width() + 35;
		c.style.width = useWidth + 'px';
	}
	left = Number(left) - useWidth - 30 + $(op).width();
  }
  c.style.position   = "absolute";
  c.style.top        = top +'px';
  c.style.left       = left+'px';
  
 if($.browser.msie && $.browser.version == "6.0" && !$(c).hasClass('watershed-right')) {
  var totalWidth = 0;

  $(c).children(':visible').each(function() {
	if($(this).css('float') == 'left') {
	  totalWidth += $(this).width();
	  totalWidth += parseInt($(this).css('padding-left'));
	  totalWidth += parseInt($(this).css('padding-right'));
	} });
  if (totalWidth != 5)
	$(c).width(totalWidth+10)
 }
}

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

function at_show()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);
	if (p["hover_state"] != "on") p.firstChild.className = p["hover_class"] + "_on";

  at_show_aux(p.id, c.id);
  clearTimeout(c["at_timeout"]);
  if($.browser.msie && $.browser.version == "6.0") $('select').hide();
}

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

function at_hide()
{
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);
	if (p["hover_state"] != "on") p.firstChild.className = p["hover_class"] + "_off";

  c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.display = 'none'",10);
  if($.browser.msie && $.browser.version == "6.0") $('select').show();
}

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

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

  if (c.style.display != "none") at_show_aux(p.id, c.id); else c.style.display = "none";
  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, hover_class, hover_state)
{
  var p = document.getElementById(parent);
  var c = document.getElementById(child);

  p["hover_class"]   = hover_class;
  p["hover_state"]	 = hover_state;
  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.display = "none";

  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 simpleAdd(el, sType, fn, capture) {
	if (window.addEventListener) {
		return function(el, sType, fn, capture) {
			el.addEventListener(sType, fn, (capture));
		};
	} else if (window.attachEvent) {
		return function(el, sType, fn, capture) {
			el.attachEvent("on" + sType, fn);
		};
	} else {
		return function(){};
	}
}