var root, body, logo; 
var bgrPos = -700;
var logoTop = 30;
var mHeight = 620;
window.onload = function(){
	window.onresize = setPos;
	root = $("move-it");
	body = document.body;
	logo = $("logo");
	setPos();
}
function setPos(){
	if(body.clientHeight > mHeight){
		var val = Math.floor((body.clientHeight - mHeight) / 2);
		root.style.top = val + "px";
		body.style.backgroundPosition = "left " + (bgrPos + val) + "px";
		logo.style.top = logoTop - Math.floor((val / 2) + (val / 4)) + "px";
	}
}