如何做到有滚动条的div，通过jQuery滚动到指定元素的位置

var container = $('div'),
var scrollTo = $('#row_8');

container.scrollTop(
    scrollTo.offset().top - container.offset().top + container.scrollTop()
);

// Or you can animate the scrolling:
container.animate({
    scrollTop: scrollTo.offset().top - container.offset().top + container.scrollTop()
});​