var TINY = {};

function T$(i) { return document.getElementById(i) }
function T$$(e, p) { return p.getElementsByTagName(e) }

TINY.accordion = function() {
    function slider(n) { this.n = n; this.a = [] }
    slider.prototype.init = function(t, e, m, o, k) {
        var a = T$(t), i = s = 0, n = a.childNodes, l = n.length; this.s = k || 0; this.m = m || 0;
        for (i; i < l; i++) {
            var v = n[i];
            if (v.nodeType != 3) {
                this.a[s] = {}; this.a[s].h = h = T$$(e, v)[0]; this.a[s].c = c = T$$('div', v)[0]; h.onclick = new Function(this.n + '.pr(0,' + s + ')');
                if (o == s) { h.className = this.s; c.style.height = 'auto'; c.d = 1 } else { c.style.height = 0; c.d = -1 } s++
            }
        }
        this.l = s
    };
    slider.prototype.pr = function(f, d) {
        for (var i = 0; i < this.l; i++) {
            var h = this.a[i].h, c = this.a[i].c, k = c.style.height; k = k == 'auto' ? 1 : parseInt(k); clearInterval(c.t);
            if ((k != 1 && c.d == -1) && (f == 1 || i == d)) {
                c.style.height = ''; c.m = c.offsetHeight; c.style.height = k + 'px'; c.d = 1; h.className = this.s; su(c, 1)
            } else if (k > 0 && (f == -1 || this.m || i == d)) {
                c.d = -1; h.className = ''; su(c, -1)
            }
        }
    };
    function su(c) { c.t = setInterval(function() { sl(c) }, 5) };
    function sl(c) {
        var h = c.offsetHeight, d = c.d == 1 ? c.m - h : h; c.style.height = h + (Math.ceil(d / 3) * c.d) + 'px';
        c.style.opacity = h / c.m;
        if ((c.d == 1 && h >= c.m) || (c.d != 1 && h == 1)) { if (c.d == 1) { c.style.height = 'auto' } clearInterval(c.t) }
    };
    return { slider: slider }
} ();


var firstChecker = 0;
var checker = 0;
var selected = '';
function switchImage(id) {
    if (selected == '') {

        selected = id;
        document.getElementById(id).src = 'images/system/ICON-acc-arrw-up.png';
    }
    else if (selected == id) {
    var src = document.getElementById(selected).src;
        if (src.indexOf("down") != -1) {
            document.getElementById(selected).src = 'images/system/ICON-acc-arrw-up.png';
        }
        else {
            document.getElementById(selected).src = 'images/system/ICON-acc-arrw-down.png';
        }

    }
    else {

        document.getElementById(selected).src = 'images/system/ICON-acc-arrw-down.png';
        document.getElementById(id).src = 'images/system/ICON-acc-arrw-up.png';
        selected = id;
    }
    if (checker == 0) {
        document.getElementById('first').src = 'images/system/ICON-acc-arrw-down.png';
        checker = 1;
    }
}


var parentAccordion = new TINY.accordion.slider("parentAccordion");
parentAccordion.init("acc2", "span", 0, 0);

var nestedAccordion = new TINY.accordion.slider("nestedAccordion");
//        nestedAccordion.init("nested2", "span", 1, -1, "acc2-selected");
nestedAccordion.init("nested2", "span", 1, 0, "acc2-selected");