/** This is high-level function; REPLACE IT WITH YOUR CODE.
 * It must react to delta being more/less than zero.
 */
function handle(delta) {
	
	
	
	if (window.innerHeight) {
		var winHeight = window.innerHeight;
	}
	if (document.body.clientHeight) {
		var winHeight = document.body.clientHeight;
	}
	
	if (delta < 0) {
		/* something. */;
		
		obj1.style.bottom = 0+'px';
		obj2.style.bottom = 20+'px';
	}else{
		/* something. */;
		obj1.style.bottom = 0+'px';
		obj2.style.bottom = 20+'px';
	}
	
}

function wheel(event){
	var delta = 0;
	if (!event) event = window.event;
	if (event.wheelDelta) {
		delta = event.wheelDelta/120; 
		if (window.opera) delta = -delta;
	} else if (event.detail) {
		delta = -event.detail/3;
	}
	if (delta)
		handle(delta);
}

/* Initialization code. */
if (window.addEventListener) {
	//window.addEventListener('DOMMouseScroll', wheel, false);
}else {
	//window.onmousewheel = document.onmousewheel = wheel;
}

function moveDivsToBottom() {
	var obj1 = document.getElementById('ice');
	var obj2 = document.getElementById('bottle');
	obj1.style.bottom = 0+'px';
	obj2.style.bottom = 20+'px';
}

//setInterval(moveDivsToBottom, 300);