can not taking position according to an element

[sweetysweety]

hi everyone, i have a design of a site: http://www.terranartworks.com/testsite/tsv1/index.html i'm trying to make:1- red point will slide and stop at the center position of every button,when i clicked at the button.2- grey point will slide and stop at the red points position when mouse is not at the buttons area i try to take an half of width of the link and assign red point to there but it will not working how can i do this?

[justsomeguy]

That sounds like it will work. Get the position and dimensions of the image, add half the width to the position, and that will be the center of the image.