/* SWIM2.0 :: Simple website menu
****************************************************************
* DOM scripting by brothercake -- http://www.brothercake.com/
* Licensed under GPL -- http://www.gnu.org/copyleft/gpl.html
****************************************************************
* For professional menu solutions visit -- http://www.udm4.com/ 
****************************************************************
*/



window.onload = function () {
    var verticals = new simpleMenu('menu-v', 'vertical');
    var horizontals = new simpleMenu('menu-h', 'horizontal');
};



function simpleMenu(navid, orient) {
    if (typeof document.getElementById == 'undefined' || /opera[\/ ][56]/i.test(navigator.userAgent)) {
        return;
    }
    this.iskde = navigator.vendor == 'KDE';
    this.isie = typeof document.all != 'undefined' && typeof window.opera == 'undefined' && !this.iskde;
    this.isoldsaf = navigator.vendor == 'Apple Computer, Inc.' && typeof XMLHttpRequest == 'undefined';
    this.tree = document.getElementById(navid);
    if (this.tree != null) {
        this.items = this.tree.getElementsByTagName('li');
        this.itemsLen = this.items.length;
        var i = 0;
        do {
            this.init(this.items[i], this.isie, this.isoldsaf, this.iskde, navid, orient);
        } while (++i < this.itemsLen);
    }
}
simpleMenu.prototype.init = function (trigger, isie, isoldsaf, iskde, navid, ishoriz) {
    trigger.menu = trigger.getElementsByTagName('ul').length > 0 ? trigger.getElementsByTagName('ul')[0] : null;
    trigger.link = trigger.getElementsByTagName('a')[0];
    trigger.issub = trigger.parentNode.id == navid;
    trigger.ishoriz = ishoriz == 'horizontal';
    this.openers = {
        'm': 'onmouseover',
        'k': (isie ? 'onactivate' : 'onfocus')
    };
    for (var i in this.openers) {
        trigger[this.openers[i]] = function (e) {
            if (!iskde) {
                trigger.link.className += (trigger.link.className == '' ? '' : ' ') + 'rollover';
            }
            if (trigger.menu != null) {
                if (trigger.ishoriz) {
                    trigger.menu.style.left = (isie || isoldsaf) ? trigger.offsetLeft + 'px' : 'auto';
                }
                
                if(!window.addEventListener && !window.XMLHttpRequest && window.attachEvent)
                {
                    // IE6 or 5.5.
                    trigger.menu.style.top = (trigger.ishoriz && trigger.issub) ? (isie || (trigger.ishoriz && isoldsaf)) ? trigger.link.offsetHeight + 'px' : 'auto' : (isie || (trigger.ishoriz && isoldsaf)) ? trigger.offsetTop + 'px' : '0';
                }
                else
                {
                    trigger.menu.style.top = (trigger.ishoriz && trigger.issub) ? (isie || (trigger.ishoriz && isoldsaf)) ? trigger.link.offsetHeight + 'px' : 'auto' : (isie || (trigger.ishoriz && isoldsaf)) ? '0' : '0';
                }
            }
        };
    }
    this.closers = {
        'm': 'onmouseout',
        'k': (isie ? 'ondeactivate' : 'onblur')
    };
    for (i in this.closers) {
        trigger[this.closers[i]] = function (e) {
            this.related = (!e) ? window.event.toElement : e.relatedTarget;
            if (!this.contains(this.related)) {
                if (!iskde) {
                    trigger.link.className = trigger.link.className.replace(/[ ]?rollover/g, '');
                }
                if (trigger.menu != null) {
                    trigger.menu.style[(trigger.ishoriz ? 'left' : 'top')] = trigger.ishoriz ? '-10000px' : '-100em';
                }
            }
        };
    }
    if (!isie) {
        trigger.contains = function (node) {
            if (node == null) {
                return false;
            }
            if (node == this) {
                return true;
            } else {
                return this.contains(node.parentNode);
            }
        };
    }
}