function reset() {
		$$('ul#gallery li').each(function(e) {
			e.setStyle('opacity', 0);
		});
}
	
function animate() {
    reset();
    delay = 100;
    speed = 600;
    
    var i = 0; 
    var li = $$('ul#gallery li');
    li.each(function(e) {  
    	i += delay; 
    	setTimeout( function() {
    		e.set('tween', {duration: speed, transition: 'back:in'}).tween('opacity', 0, 1);
    	}, i);   
    });
}

window.addEvent('load', animate);

window.addEvent('domready', function(e) {
	var customTips = $$('.tooltip');
	var toolTips = new Tips(customTips, {
		showDelay: 400,    //default is 100
		hideDelay: 100,   //default is 100
		className: 'anything', //default is null
		offsets: {
			'x': 16,       //default is 16
			'y': 16        //default is 16
		},
		fixed: false,      //default is false
		onShow: function(toolTipElement){
		    toolTipElement.fade(.9);
		},
		onHide: function(toolTipElement){
    		toolTipElement.fade(0);
		}
	});
});