var intervalTime = 50;
var menu_list = new Array('homepage', 'firmprofile', 'oursevices', 'newsletter', 'resources', 'contact', 'subpage');
var active = new Array();
for(i = 0; i < menu_list.length; i++) {
  active[menu_list[i]] = false;
}

function showmenu(target) {
  active[target] = true;
  document.getElementById('menu_' + target).className = 'menu_hover';
  document.getElementById('menu_list_' + target).style.display = 'block';
}

function hidemenu(target) {
  if(active[target] == true)
    return;
  document.getElementById('menu_' + target).className = 'menu';
  document.getElementById('menu_list_' + target).style.display = 'none';
}

function outmenu(target) {
  active[target] = false;
  setTimeout('hidemenu(\'' + target + '\')', intervalTime);
}