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 = "#3CB371";} 
                        navItems[i].onmouseout=function() {this.getElementsByTagName('ul')[0].style.display="none";this.style.backgroundColor = "#3CB371";} 
                    } 
                } 
            }