1if {![package vsatisfies [package provide Tcl] 8.2]} return 2package ifneeded sak::util 1.0 [list source [file join $dir util.tcl]] 3package ifneeded sak::registry 1.0 [list source [file join $dir registry.tcl]] 4package ifneeded sak::animate 1.0 [list source [file join $dir anim.tcl]] 5package ifneeded sak::color 1.0 [list source [file join $dir color.tcl]] 6package ifneeded sak::feedback 1.0 [list source [file join $dir feedback.tcl]] 7