There are javascript errors on first page

[melcloud]

When I visited first page, a javascript error is thrown:

el is undefined
http://www.1kg.org/javascripts/all.cache.js?1285900259
Line 155

[makestory]

Thank you.
I had fount this error by firebug. but not fix it.
Its looks like some library problem that we use. Ill pay some time to fix it later.
thanks again :)