// JavaScript Document

var current_menu = 1;
// Número de elementos en el menú
var num_menus = 9;

function drop(x, y, a, b, c, d, e, f, g, h)
	{
	document.getElementById(x).style.display = "block";
	document.getElementById(y).className = "active";
	document.getElementById(a).style.display = "none";
	document.getElementById(b).style.display = "none";
	document.getElementById(c).style.display = "none";
	document.getElementById(d).style.display = "none";
	document.getElementById(e).className = "none";
	document.getElementById(f).className = "none";
	document.getElementById(g).className = "none";
	document.getElementById(h).className = "none";
	}

function $$(id)
{
  return document.getElementById(id);
}

function show_menu(act)
{
  hide_all();

  if ($$('show0' + act))
  {
    if ($$('show0' + current_menu))
      $$('show0' + current_menu).style.display = 'none';
    $$('show0' + act).style.display = 'block';
  }

  if ($$('current0' + act))
  {
    if ($$('current0' + current_menu))
      $$('current0' + current_menu).className = '';
    $$('current0' + act).className = 'active';
  }
}

function hide_all()
{
  for (var i=0; i<num_menus; i++)
  {
    if (($$('show0' + i)) )
      $$('show0' + i).style.display = 'none';
    if (($$('current0' + i)) )
      $$('current0' + i).className = '';
  }

  if ($$('show0' + current_menu))
    $$('show0' + current_menu).style.display = 'block';

  if ($$('current0' + current_menu))
    $$('current0' + current_menu).className = 'active';
}