var isNS4 = (document.layers) ? true:false;
var isIE  = (document.all) ? true:false;
var isNS6 = (!document.all && document.getElementById) ? true:false;

function menu_array(menu,submenu,xmenu,zsubmenu)
{
 this.menu=menu;
 this.submenu=submenu;
 this.xmenu=xmenu;
 this.zsubmenu=zsubmenu;
}

Menus=new Array(6);
Menus[0]=new menu_array("misproductos","submisproductos",49,20);
Menus[1]=new menu_array("misservicios","submisservicios",62,64);
Menus[2]=new menu_array("micartera","submicartera",79,0);
Menus[3]=new menu_array("mipresupuesto","submipresupuesto",96,0);
Menus[4]=new menu_array("areacliente","subareacliente",113,0);
Menus[5]=new menu_array("registrate","subregistrate",141,0);

function menu(n)
{
  if (isNS4) 
  {
    if (document.layers[Menus[n].submenu].visibility=='hide')
    {
      for (i=0;i<=n;i++) document.layers[Menus[i].menu].top=Menus[i].xmenu;
      for (i=n+1;i<Menus.length;i++) document.layers[Menus[i].menu].top=(Menus[i].xmenu)+Menus[n].zsubmenu;
      for (i=0;i<Menus.length;i++) document.layers[Menus[i].submenu].visibility='hide';
      document.layers[Menus[n].submenu].visibility='show';
    }
    else
    {
      for (i=0;i<Menus.length;i++) document.layers[Menus[i].menu].top=Menus[i].xmenu;
      for (i=0;i<Menus.length;i++) document.layers[Menus[i].submenu].visibility='hide';
    }
  }
  else if (isNS6)
  {
    if (document.getElementById(Menus[n].submenu).style.visibility=='hidden')
    {
      for (i=0;i<=n;i++) document.getElementById(Menus[i].menu).style.top=Menus[i].xmenu;
      for (i=n+1;i<Menus.length;i++) document.getElementById(Menus[i].menu).style.top=(Menus[i].xmenu)+Menus[n].zsubmenu;
      for (i=0;i<Menus.length;i++) document.getElementById(Menus[i].submenu).style.visibility='hidden';
      document.getElementById(Menus[n].submenu).style.visibility='visible';
    }
    else
    {
      for (i=0;i<Menus.length;i++) document.getElementById(Menus[i].menu).style.top=Menus[i].xmenu;
      for (i=0;i<Menus.length;i++) document.getElementById(Menus[i].submenu).style.visibility='hidden';
    }
  }
  else
  { 
    if (document.all[Menus[n].submenu].style.visibility=='hidden')
    {
      for (i=0;i<=n;i++) document.all[Menus[i].menu].style.top=Menus[i].xmenu;
      for (i=n+1;i<Menus.length;i++) document.all[Menus[i].menu].style.top=(Menus[i].xmenu)+Menus[n].zsubmenu;
      for (i=0;i<Menus.length;i++) document.all[Menus[i].submenu].style.visibility='hidden';
      document.all[Menus[n].submenu].style.visibility='visible';
    }
    else
    {
      for (i=0;i<Menus.length;i++) document.all[Menus[i].menu].style.top=Menus[i].xmenu;
      for (i=0;i<Menus.length;i++) document.all[Menus[i].submenu].style.visibility='hidden';
    }
  }
}