var TimeOut         = 50;
var closeTimer      = null;

function mclosetime1() {
	closeTimer = window.setTimeout(CloseMenu1, TimeOut);
}
	function CloseMenu1(){ 
		document.getElementById('menu1').style.visibility = 'hidden';
		document.getElementById('head01').src = '../images/head01.gif';
	}

function mclosetime2() {
	closeTimer = window.setTimeout(CloseMenu2, TimeOut);
}
	function CloseMenu2(){ 
		document.getElementById('menu2').style.visibility = 'hidden';
		document.getElementById('head02').src = '../images/head02.gif';
	}

function mclosetime3() {
	closeTimer = window.setTimeout(CloseMenu3, TimeOut);
}
	function CloseMenu3(){ 
		document.getElementById('menu3').style.visibility = 'hidden';
		document.getElementById('head03').src = '../images/head03.gif';
	}

function mclosetime4() {
	closeTimer = window.setTimeout(CloseMenu4, TimeOut);
}
	function CloseMenu4(){ 
		document.getElementById('menu4').style.visibility = 'hidden';
		document.getElementById('head04').src = '../images/head04.gif';
	}

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

function OpenMenu(id,imgId){ 
	document.getElementById( id ).style.visibility = 'visible';
	document.getElementById( imgId ).src ='../images/' + imgId + '_hover.gif';
}
function CloseMenu(id){ 
	document.getElementById( id ).style.visibility = 'hidden';
}