function __$(id) {
    return document.getElementById(id);
}

function showMenu (baseID, divID) {
    baseID = __$(baseID);
    divID  = __$(divID);
    if (showMenu.timer) clearTimeout(showMenu.timer);
	hideCur();
    divID.style.display = 'block';
	showMenu.cur = divID;
	__$('nav_'+def).className='';
    if (! divID.isCreate) {
        divID.isCreate = true;
        //divID.timer = 0;
        divID.onmouseover = function () {
            if (showMenu.timer) clearTimeout(showMenu.timer);
			hideCur();
            divID.style.display = 'block';
        };

        function hide () {
            showMenu.timer = setTimeout(function () {divID.style.display = 'none';initmenu();}, 1000);
        }

        divID.onmouseout = hide;
        baseID.onmouseout = hide;
    }
	function hideCur () {
		showMenu.cur && (showMenu.cur.style.display = 'none');
	}
}
var def=1;
function initmenu(){
	var baseID='nav_'+def;
	var divID='subnav'+def;
	
	__$(divID).style.display = 'block';
	__$(baseID).className='current';
	showMenu.cur = __$(divID);
}



//alert("test");