You have a lot of conflicting js. There is a lot of js files that could be stopping the lavalamp plugin as well as other snippets.

You/ your mods are defining jQuery multiple times(3).

I suggest disabling/uninstalling some mods until the menu works and then figure out which ones are causing problems.

jQuery which is the menu, where you look for in the subject?

or could put the menu without jQuery?

I have no problem in Chrome. Do you have any other conflicting javascript, jquery stuff?

Sorry, it is hard to debug without seeing the problem for myself.

http://entermundo.xtreemhost.com

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What browsers are you using?

Google Chrome

Hello, do not speak English

I have problems with the menu, when I open a sub menu is not closed, it stays there. as I fix it?

I repeat do not speak Spanish if English