annoying flicker effect on jqDock jquery menu

annoying flicker effect on jqDock jquery menu

Hi every one,

I am new in jquery and js. I have used  jqDock , plugin (http://www.wizzud.com/jqDock/) for my web site menu and with the help of a friend I managed to make the active menu element remain expanded.

Here is the problem: if you hover your mouse between two of the menu elements and move slowly between them upwards on downwards , you'll get this terrible flicker effect.(sometimes you gota play around for few seconds to see what I say) I don't know why it happens and how can I fix it and if it is doable at all.

The menu example on the website here (http://www.wizzud.com/jqDock/) dosen't have this bug. I guess after we made the active element expanded, it started happening

here is the url to my website:
http://maryamkazerooni.com/beta/portfolio.html

I appreciate your help a looooot
cheers
Maryam