function getScrollTop() {
	var top = 0;
    if (window.pageYOffset > top) {
    	top = window.pageYOffset;
    }
    if (document.documentElement.scrollTop > top) {
    	top = document.documentElement.scrollTop;
    }
    if (document.body.scrollTop > top) {
    	top = document.body.scrollTop;
    }
    return top;
}
function setScrollTop(y) {
	if (y < 0) {
		y = 0;
	}
	window.scroll(0, y);
	var yy = getScrollTop();
	if (y != yy) {
		y = yy;
	}
	setScrollTopCookie(y);
}
function setScrollTopCookie(y) {
	if (y < 0) {
		y = 0;
	}
	Cookie.write('autozoller', y, {path: '/', domain: globalDomain});
}
function getScrollTopCookie() {
	return parseInt(Cookie.read('autozoller'));
}
window.addEvent('unload', function() {
	setScrollTopCookie(getScrollTop());
});
window.addEvent('domready', function() {
	var y = getScrollTopCookie();
	if (y == null || y == false) {
		setScrollTopCookie(getScrollTop());
	} else {
		setScrollTop(y);
	}
});