function vertical() {



   var navItems = document.getElementById("nav").getElementsByTagName("li");

    

   for (var i=0; i< navItems.length; i++) {

      if(navItems[i].className == "submenu") {

         navItems[i].onmouseover=function() {this.getElementsByTagName('ul')[0].style.display="block";this.style.backgroundColor = "#FFFFFF";}

         navItems[i].onmouseout=function() {this.getElementsByTagName('ul')[0].style.display="none";this.style.backgroundColor = "#FFFFFF";}

      }

   }
}



function horizontal() {



   var navItems = document.getElementById("barra").getElementsByTagName("li");

    

   for (var i=0; i< navItems.length; i++) {

      if((navItems[i].className == "menuvertical") || (navItems[i].className == "submenu"))

      {

         if(navItems[i].getElementsByTagName('ul')[0] != null)

         {

            navItems[i].onmouseover=function() {this.getElementsByTagName('ul')[0].style.display="block";this.style.backgroundColor = "#FFFFFF";}

            navItems[i].onmouseout=function() {this.getElementsByTagName('ul')[0].style.display="none";this.style.backgroundColor = "#FFFFFF";}

         }

      }

   }



}