having a mac type menu in theme


   I added a jquery script to create a mac type navigation menu(jdock) in my theme.  I have the images placed properly.  When i load the page the icons appear properly and they get bigger when i hover (as expected) but after like 2 seconds the icons disapper i only see alt text for images.  I am unable to find what is causing the icons disappear after 2 seconds.  The jquery file is linked and all the icons are linked properly, I cant understand whats going wrong.