function previous()
{
    var scrolling = new Fx.Scroll($('members-list')); 
	        scrolling.scrollTo( parseInt($('members-list').scrollTop) - 822, 0);
}
function next()
{
    var scrolling = new Fx.Scroll($('members-list')); 
	        scrolling.scrollTo( parseInt($('members-list').scrollTop) + 822, 0);
}