/*
* Apunta 
*/
var NAV_ID = 'nav';
var SUBNAV_ID = 'subnav';
var _index;

function show(index) {
    _index = 0
    hideAll();
    document.getElementById(SUBNAV_ID + index).style.display = 'block';
    document.getElementById(NAV_ID + index).style.backgroundPosition = "bottom left";
}

function hide(index) {
    _index = index;
    setTimeout(_hide, 1000);

}

function hideNow(index) {
    document.getElementById(SUBNAV_ID + index).style.display = 'none';
    document.getElementById(NAV_ID + index).style.backgroundPosition = "top left";
}

function hideAll() {
    for (var i = 1; i <= 6; i++) {
        hideNow(i);
    }
}

function _hide() {
    if (_index == 0) return;
    document.getElementById(SUBNAV_ID + _index).style.display = 'none';
    document.getElementById(NAV_ID + _index).style.backgroundPosition = "top left";
}