var YOOBase = {
    matchHeight: function(elements, min) {
        var max = 0;
        $$(elements).each(function(element, i) {
            var height;
            if (element.offsetHeight) {
                height = element.offsetHeight
            } else if (element.style.pixelHeight) {
                height = element.style.pixelHeight
            }
            max = Math.max(max, height)
        });
        if (min != undefined) {
            max = Math.max(max, min)
        }
        $$(elements).each(function(element, i) {
            var offset = element.getStyle('padding-top').toInt() + element.getStyle('padding-bottom').toInt() + element.getStyle('border-top-width').toInt() + element.getStyle('border-bottom-width').toInt();
            var height = max - offset;
            var style = window.ie6 ? 'height': 'min-height';
            element.setStyle(style, height + 'px')
        })
    }
};
var YOOMorph = new Class({
    initialize: function(element, enter, leave, enterFx, leaveFx, elementFx) {
        this.setOptions({
            duration: 500,
            transition: Fx.Transitions.expoOut,
            wait: false,
            ignoreClass: ''
        },
        enterFx);
        var options = this.options;
        $$(element).each(function(el, i) {
            var elfx = el;
            if (elementFx) {
                var elms = el.getElementsBySelector(elementFx);
                if (elms.length > 0) {
                    elfx = elms[0]
                }
            }
            var fx = new Fx.Styles(elfx, options);
            if (! ($chk(options.ignoreClass) && el.hasClass(options.ignoreClass))) {
                el.addEvent('mouseenter',
                function(e) {
                    fx.setOptions(options, enterFx).start(enter)
                });
                el.addEvent('mouseleave',
                function(e) {
                    fx.setOptions(options, leaveFx).start(leave)
                })
            }
        })
    }
});
YOOMorph.implement(new Options);
var YOOBackgroundFx = new Class({
    initialize: function(options) {
        this.setOptions({
            transition: Fx.Transitions.linear,
            duration: 9000,
            wait: false,
            colors: ['#FFFFFF', '#999999']
        },
        options);
        var body = new Element(document.body);
        var fx = body.effects(this.options);
        var index = 0;
        var colors = this.options.colors;
        var timer = animate.periodical(this.options.duration * 2);
        animate();
        function animate() {
            fx.start({
                'background-color': colors[index]
            });
            if (index + 1 >= colors.length) {
                index = 0
            } else {
                index++
            }
        }
    }
});
YOOBackgroundFx.implement(new Options);