// Copyright (C) 2005 Pieter van Houten. All rights reserved.
// Technical support: http://www.webdefine.nl/
// ----- Show Aux -----

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

  var top;
  var left; 
	if(c["at_position"] == "y"){
		top = p.offsetHeight + 0;
		left = p.offsetWidth;
	}else{
		left = c.offsetWidth - 25
		top = 0;
	}

  for (; p; p = p.offsetParent)
  {
    //top  += c.offsetTop;
    //left += c.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" ]);
  
  //first hide the previous and next submenu
  //alert(c.id)
  if(c.id.indexOf("prodsub") > -1){
	//get the current submenu number
	//debug:
	//alert(iCurNum)
	//alert(document.getElementById("prodsub1"))
	//alert(document.getElementById("prodsub" + (iCurNum - 1)))
	//alert(document.getElementById("prodsub" + (iCurNum + 1)))	
	var iNextNum = parseInt(c.id.substring(7)) + 1
	var iPrevNum = parseInt(c.id.substring(7)) - 1
	var prevSubMenu = document.getElementById("prodsub" + iPrevNum.toString())
	var nextSubMenu = document.getElementById("prodsub" + iNextNum.toString())
	
	if(prevSubMenu != null){
		prevSubMenu.style.visibility = 'hidden'
	}
	if(nextSubMenu != null){
		nextSubMenu.style.visibility = 'hidden'
	}
  }

  at_show_aux(p.id, c.id);

  clearTimeout(c["at_timeout"]);
}

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

function at_hide()
{

  c = document.getElementById(this["at_child"]);  
  //now time the current visibility
  c["at_timeout"] = setTimeout("document.getElementById('"+c.id+"').style.visibility = 'hidden'", 800);  
}

// ----- 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)
{
  p = document.getElementById(parent);
  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;
  }
}