var timeout	= 500;
var closetimer	= 0;
var ddlink	= 0;
var ddmenuitem	= 0;

function mopen(id_link, id_menu) {
	mcancelclosetime();
	if ((ddlink)&&(ddmenuitem)) {
		if (ddlink.className != "active") {
			ddlink.style.backgroundPosition = '0 0';
		}
		if (ddlink.className == "active") {
			ddlink.style.backgroundPosition = '0 -130px';
		}
		ddmenuitem.style.visibility = 'hidden';
	}
	ddlink = document.getElementById(id_link);
	ddmenuitem = document.getElementById(id_menu);
	if (ddlink.className != "active") {
		ddlink.style.backgroundPosition = '0 -65px';
	}
	if (ddlink.className == "active") {
		ddlink.style.backgroundPosition = '0 -195px';
	}
	ddmenuitem.style.visibility = 'visible';
}

function mclose() {
	if ((ddlink)&&(ddmenuitem)) {
		if (ddlink.className != "active") {
			ddlink.style.backgroundPosition = '0 0';
		}
		if (ddlink.className == "active") {
			ddlink.style.backgroundPosition = '0 -130px';
		}
		ddmenuitem.style.visibility = 'hidden';
	}
}

function mclosetime() {
	closetimer = window.setTimeout(mclose, timeout);
}

function mcancelclosetime() {
	if(closetimer) {
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

//document.onclick = mclose;