// 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 +1 : 0);
  var left = ((c["at_position"] == "x") ? p.offsetWidth +1 : 0);
  if (c["at_position"] == "y"){
	  top  += -6;
      left += +4;
  }

  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";
  c.style.zIndex 	 = +99999;

  //alert (top + " " + left);
}

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

function at_show()
{
	//alert (this["at_parent"]);
  var p = document.getElementById(this["at_parent"]);
  var c = document.getElementById(this["at_child" ]);
  var changed = false;
  
  if (c["at_over"]== false){
 	c["at_over"] = true;
  	changed = true;
  }
  
  if (c["at_lock_id"]!= "" && changed == true){
	var locker = document.getElementById(c["at_lock_id"]);
	locker["at_lock"] += 1;
  }
  
  c["at_timein"] = setTimeout("at_show_aux('"+p.id+"','"+c.id+"')", 222);	
  //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" ]);
  clearTimeout(c["at_timein"]);
  var changed = false;
  if (c["at_over"]== true){
  c["at_over"]= false;
  changed = true;
  }
  if (c["at_lock"] == 0){
  if (c["at_lock_id"]!= ""){
	  
	  var locker = document.getElementById(c["at_lock_id"]);
	  var lockerc = document.getElementById(locker["at_child"]);
	  	if (changed == true){
		c["at_timeout2"] = setTimeout("document.getElementById('"+locker.id+"')['at_lock'] -= 1;", 222);
		}
	  c["at_timeout"] = setTimeout("at_realhide('"+c.id+"','"+locker.id+"')", 222);
	}else{
  		c["at_timeout"] = setTimeout("at_realhide('"+c.id+"','')", 222);
	}
  }
}

function at_realhide(child, locker){
    var c = document.getElementById(child);
	c.style.visibility = 'hidden';
	if (locker != ""){
		var locker = document.getElementById(locker);
		
		if (locker["at_over"] == false && locker['at_lock'] == 0){
			
			if (locker["at_lock_id"]!= ""){
				var locker_locker = document.getElementById(locker["at_lock_id"]);	
				locker["at_timeout2"] = setTimeout("document.getElementById('"+locker_locker.id+"')['at_lock'] -= 1;", 222);
				locker["at_timeout"]=  setTimeout("at_realhide('"+locker.id+"','"+locker_locker.id+"')", 222);
			} else {
				locker["at_timeout"]=  setTimeout("at_realhide('"+locker.id+"','')", 222);
			}
		}else{
				
		}
	}
}
// ***** 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, lock)
{
  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["at_lock"]		= 0;
  c["at_over"]		= false;
  c["at_lock_id"]   = lock;
  c["at_timeout"] == "";

  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;
  }
}