Hi,

thanks for nice module,

when I drop a block in a region, I get this javascript error in firebug:

F is undefined
_init()()ui.dropp....min.js?5 (line 14)
init()()jquery.min.js?5 (line 12)
init()()jquery.min.js?5 (line 12)
_init()()ui.dropp....min.js?5 (line 14)
_init()()ui.dropp....min.js?5 (line 14)
init()()jquery.min.js?5 (line 12)
_init()()ui.dropp....min.js?5 (line 14)
_init()()ui.dragg....min.js?5 (line 13)
add()()ui.core.min.js?5 (line 10)
add()()ui.core.min.js?5 (line 10)
F()()jquery.min.js?5 (line 19)
F()()
[Break on this error] (function(A){A.widget("ui.droppable",{_i...Class(C.options.hoverClass)}})})(jQuery)

would you please check it ?