var dropDowns = {}
function $(el) {
   return document.getElementById (el);
}
function sm(menuName,par_menu)
{
if(dropDowns[menuName])clearTimeout(dropDowns[menuName])
$(menuName).style.display = '';
}
function hm(menuName)
{
dropDowns[menuName] = setTimeout(function(){
document.getElementById(menuName).style.display = 'none'},80)
}