// ----- DropDown Control ------------------------------------------------------

var at_timeout = 30;
var at_timeout2 = 250;

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

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

//  p.className        = "active";

  if (c.offsetWidth <= 0)
  {
    c.style.position   = "absolute";
    c.style.visibility = "visible";
    c.style.display    = "block";
  }

  var direction = undefined;
  if (p.parentNode && p.parentNode["at_position"] == "x")
    direction = p.parentNode["at_direction"];

  var top   = (c["at_position"] == "y") ?  p.offsetHeight+2 : 0;
  var left1 = (c["at_position"] == "x") ?  p.offsetWidth +2 : 0;
  var left2 = (c["at_position"] == "x") ? -c.offsetWidth -2 : 0;
  var left3 = (c["at_position"] == "x") ?  p.offsetWidth +2 : 0;

  for (; p; p = p.offsetParent)
  {
    if (p.style.position != 'absolute')
    {
      left1 += p.offsetLeft;
      left2 += p.offsetLeft;
      top   += p.offsetTop;
    }
    left3 += p.offsetLeft;
  }

  if (direction)
  {
    left = (direction == 'right') ? left1 : left2;
    c['at_direction'] = direction;
  }
  else
  {
    left = (left3+c.offsetWidth < document.body.offsetWidth) ? left1 : left2;
    c['at_direction'] = (left3+c.offsetWidth < document.body.offsetWidth) ? 'right' : 'left';
  }

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

// ----- Hide Aux -----

function at_hide_aux(parent, child)
{
//  document.getElementById(parent).className        = "submenu";
  document.getElementById(child ).style.visibility = "hidden";
  document.getElementById(child ).style.display    = "block";
}

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

function at_show(e)
{
  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"]);
}

// ----- Hide -----
function at_hide()
{
  var c = document.getElementById(this["at_child"]);
  c["at_timeout"] = setTimeout("at_hide_aux('"+this["at_parent"]+"', '"+this["at_child" ]+"')", at_timeout);
}
function at_hide2()
{
  var c = document.getElementById(this["at_child"]);
  c["at_timeout"] = setTimeout("at_hide_aux('"+this["at_parent"]+"', '"+this["at_child" ]+"')", at_timeout2);
}

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

function at_attach(parent, child, position)
{
  p = document.getElementById(parent);
  c = document.getElementById(child );

  p["at_child"]    = c.id;
  c["at_child"]    = c.id;
  p["at_parent"]   = p.id;
  c["at_parent"]   = p.id;
  c["at_position"] = position;

  p.onmouseover = at_show;
  c.onmouseover = at_show;
  if (position=="x") {
     p.onmouseout  = at_hide2;
     c.onmouseout  = at_hide2;
  }
  else {
     p.onmouseout  = at_hide;
     c.onmouseout  = at_hide;
  }
}

// ----- DropDown Menu ---------------------------------------------------------

// ----- Build Aux -----

function dhtmlmenu_build_aux(parent, child, position)
{
//  document.getElementById(parent).className = "submenu";
  at_attach(parent, child, position);
}

// ----- Build -----

function dhtmlmenu_build(menu, submenu, posicao)
{
  dhtmlmenu_build_aux(menu, submenu, posicao);
}
function getObject(obj) {
  var theObj;
  if(document.all) {
    if(typeof obj=="string") {
      return document.all(obj);
    } else {
      return obj.style;
    }
  }
  if(document.getElementById) {
    if(typeof obj=="string") {
      return document.getElementById(obj);
    } else {
      return obj.style;
    }
  }
  return null;
}
function Muda_width(nobj, tipo) 
{
   if (tipo<15) 
      tipo=20;
   obj = getObject(nobj);
   if (document.layers) { // Netscape 4
      obj.width = tipo*8 + 'px';
   }
   else { // IE 4
      obj.style.width = tipo*8 + 'px';
   }
}