// JavaScript Document
var last_open = [];
var up_hover;
function activateMenu(nav) {
  var i = 0;
  navroot = document.getElementById(nav);
  var lis=navroot.getElementsByTagName("LI");
  for (i=0; i<lis.length; i++){  
    //if (lis[i].lastChild.className != 'submenu_3' && lis[i].lastChild.className != 'submenu_4'){
    if(lis[i].lastChild.tagName=="UL" ){
    
      lis[i].onmouseover=function(){         
    
        if (last_open[this.lastChild.className] && (last_open[this.lastChild.className] != this.lastChild && last_open[this.lastChild.className] != this.offsetParent)){ 
          last_open[this.lastChild.className].style.display = 'none';
        }
        this.lastChild.style.display="block"; 
        last_open[this.lastChild.className] = this.lastChild;
        
      }
      //lis[i].onmouseout=function() { this.lastChild.style.display="none"; }
    }else{
      lis[i].onmouseover=function(){
        if (this.parentNode.id==nav){
          if (up_hover) up_hover.className = '';
          this.firstChild.className = 'active';
          up_hover = this.firstChild;
        }
        if (last_open['submenu_1']) last_open['submenu_1'].style.display = 'none';
      }
    }
  //}
  }
}
function close_menu(){
  if (last_open['submenu_1']) last_open['submenu_1'].style.display = 'none';
}