ive been looking at adding a sliding login panel to my site

ive been looking at adding a sliding login panel to my site came across this post https://premium.wpmudev.org/blog/how-to-create-a-sliding-jquery-login-panel-for-wordpress-wpmu-and-buddypress/

i made all changes to the theme but no slider doesnt expand links dont work or anything could i hae some help please

thanks