KoolSlideMenu - Excellent PHP MenuKoolSlideMenu - Excellent PHP MenuFullVersion 1.6.0.0 released on 04/16/2012

Features - SingleExpand

singleExpand = true
singleExpand = false

Description & Sample code

Description Example.php Documentation
KoolSlideMenu supports keeping only one menu open at a time. To enable this feature, you need to set singleExpand of KooLSlideMenu's instance to true.