// JavaScript Document

var TimeOut         = 300;
var currentLayer    = null;
var currentitem     = null;

var currentLayerNum = 0;
var noClose         = 0;
var closeTimer      = null;

function mopen(n)
{	
    var l  = document.getElementById('menu'+n);
    var mm = document.getElementById('mmenu'+n);
  
    if(l)
    {
        mcancelclosetime();
        l.style.visibility='visible';

        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;
    }
}

function mclose()
{
    if(currentLayer && noClose!=1)
    {
        currentLayer.style.visibility='hidden';
        currentLayerNum = 0;
        currentLayer = null;
        currentitem = null;
    }
    else
    {
        noClose = 0;
    }

    currentLayer = null;
    currentitem = null;
}

document.onclick = mclose;