// JavaScript Document
function showAndHide (div_name, value){
  if (document.getElementById){
    var div = document.getElementById(div_name);
    if (div){
		if (value == false)
		{
		  div.style.left = '-9999em';
		} else {
		  div.style.left = '-0.0626em';
		}
    }
  }
}

function prepareMenu(){
//Cria as chamadas para eventos de forma não-intrusiva
  var menu = document.getElementById('menu_menu');
  var menuLinks = menu.getElementsByTagName('a');
  menu = menuLinks[0];
  var principal = document.getElementById('principal');
  menu.onclick = function(){
    showAndHide('submenu', true);    
    return false;
  }
  menu.onkeypress = function(){
    var keynum;
    if(window.event) // para o IE
      keynum = window.event.keyCode;
    else if(e.keyCode) // Netscape/Firefox/Opera
      keynum = e.keyCode;
    if (keynum == 13) { //apenas a tecla ENTER
      showAndHide('submenu', true);
      return false;
    }
  }
  principal.onmousedown = principal.onkeypress = function(){
    showAndHide('submenu', false);
    return false;
  }
  
  //
  //fechar submenu
  var submenu = document.getElementById('submenu_aba');
  var submenuLinks = submenu.getElementsByTagName('a');
  submenu = submenuLinks[0];
  submenu.onclick = function(){
    showAndHide('submenu', false);    
    return false;
  }
  submenu.onkeypress = function(){
    var keynum;
    if(window.event) // para o IE
      keynum = window.event.keyCode;
    else if(e.keyCode) // Netscape/Firefox/Opera
      keynum = e.keyCode;
    if (keynum == 13) { //apenas a tecla ENTER
      showAndHide('submenu', false);
      return false;
    }
  }
  
 // principal.onkeypress = function(){ //qualquer tecla
 //   showAndHide('submenu', false);
 //  return true;
 //}
}
ELO.functionsToCallOnload.push("prepareMenu()");