Hello, i have a problem with some action i needed to my website.   So, what i want its i can control the direction of draggable only to down and when i try move drag to top the section "div" doesn't move just lock.   But this action work in first ".post", because i have a list and i have first and last, and when the first just drag to down and last just drag to top.   I have this code.   If some one can help me with this problem i appreciate. Thanks. var $post = $(".post"); var boxHeig