//èäåíòèôèêàòîð ïðåäûäóùåãî îòêðûòîãî ìåíþ
var oldsubmenu;
//îòêðûòîå ìåíþ çàêðûâàåòñß ïî òàéìåðó
var timeOnMenu;

//ôóíêöèß ñêðûòèß áëîêà âûïàäàþùåãî ìåíþ
function showmenu(obj)
  {
   if (timeOnMenu){
     //åñëè óñòàíîâëåíî ñêðûòèå ïî òàéìåðó,
     //òî óäàëèòü òàéìåð è îòìåíèòü âñêûòèå
     clearTimeout(timeOnMenu);
     }
  //ñêðûòü ñóùåñòâóþùèé îòêðûòûé áëîê âûïàäàþùåãî ìåíþ
   if (oldsubmenu) hide (oldsubmenu);
  //ïîêàçàòü áëîê âûïàäàþùåãî ìåíþ ñ èäåíòèôèêàòîðîì obj
  show(obj);
  //èäåíòèôèêàòîð òåêóùåãî îòêðûòîãî ìåíþ
  oldsubmenu=obj;
  }

//ôóíêöèß ñêðûòèß áëîêà âûïàäàþùåãî ìåíþ
function hidemenu()
  {
  //åñëè åñòü îêðûòûé áëîê âûïàäàþùåãî ìåíþ,
  //òî ñêðûòü åãî ÷åðåç 0.5 ñåê ïî òàéìåðó
  if (oldsubmenu) timeOnMenu = setTimeout("hide(oldsubmenu)", 500)
  }

function getObject(obj)
{
 var theObj
 if (document.layers) {
  if (typeof obj == "string") return document.layers[obj]
  else return obj
 }
if (document.all) {
  if (typeof obj == "string")
  {
   if(document.all(obj)!=null) return document.all(obj).style;
   else return null;
  }
  else return obj.style
 }
 if (document.getElementById)
 {
 if (typeof obj == "string")
  return document.getElementById(obj).style
  else return obj.style
  }
  return null
  }


function show(obj) {
var theObj = getObject(obj);
if (typeof theObj.visibility != "undefined")
 theObj.visibility = "visible"
if (typeof theObj.display != "undefined") theObj.display = "block"
}

function hide(obj) {
var theObj = getObject(obj)
if (typeof theObj.visibility != "undefined")
 theObj.visibility = "hidden"
if (typeof theObj.display != "undefined") theObj.display = "none"
}

 function clock_form()
 
          {
 
 	 day=new Date()
 
 	 clock_f=day.getHours()+":"+day.getMinutes()
 
 	 document.form.f_clock.value=clock_f
 
          id=setTimeout("clock_form()",100)
 
 	 }