var TimeOut  = 300;
var currentLayer  = null;
var currentitem  = null;
var closeTimer  = null;
var currentLayerNum = 0;
var noClose = 0;

// Open Hidden Layer
function mopen(n){
    var l  = document.getElementById("menu"+n);
    var mm = document.getElementById("mmenu"+n);
    if(l){
        mcancelclosetime(); // Clear Time out
        l.style.visibility='visible'; // show object
        if(currentLayer && (currentLayerNum != n))
            currentLayer.style.visibility='hidden';
			currentLayer = l;
			currentitem = mm;
			currentLayerNum = n;			
   		 } else if(currentLayer){
			currentLayer.style.visibility='hidden';
			currentLayerNum = 0;
			currentitem = null;
			currentLayer = null;
	}
}

function mclosetime(){
    closeTimer = window.setTimeout(mclose, TimeOut);
}

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

// Close Showed Layer
function mclose(){
    if(currentLayer && noClose!=1){
        currentLayer.style.visibility='hidden';
        currentLayerNum = 0;
        currentLayer = null;
        currentitem = null;
    }else{
        noClose = 0;
    }
    currentLayer = null;
    currentitem = null;
}
// Close Layer Then Click-out
// document.onclick = mclose;