var timeout	= 500;
var closetimer	= 0;
var closetimer2	= 0;
var submenu	= 0;
var submenu2 = 0;
var music='0';
function open_submenu(id){                                         // open hidden layer
    cancel_closetime();	                                    // cancel close timer
    if(submenu) submenu.style.visibility = 'hidden';  // close old layer
    submenu = document.getElementById(id);               // get new layer and show it
    submenu.style.visibility = 'visible';
}

 function open_submenu2(id){                                         // open hidden layer
    cancel_closetime();
    cancel_closetime2();	                                    // cancel close timer
    if(submenu2) submenu2.style.visibility = 'hidden';  // close old layer
    submenu2 = document.getElementById(id);               // get new layer and show it
    submenu2.style.visibility = 'visible';
}

function close_submenu(){
	if(submenu) submenu.style.visibility = 'hidden';  // close showed layer
}

function close_submenu2(){
	if(submenu2) submenu2.style.visibility = 'hidden';  // close showed layer
}

function closetime(){
	closetimer = window.setTimeout(close_submenu, timeout);        // go close timer
}

function closetime2(){
	closetimer2 = window.setTimeout(close_submenu2, timeout);        // go close timer
}

function cancel_closetime(){                                // cancel close timer
	if(closetimer){
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

function cancel_closetime2(){                                // cancel close timer
	if(closetimer2){
		window.clearTimeout(closetimer2);
		closetimer2 = null;
	}
}