Problems with login, zoom, search box and mainmenu

Since march i am facing problems with my tools links on top of my home page. Clicking login and zoom is not working as before. The word inside search box desapeared. And the menu didn't work more with the dropdown. Could you help me. These problems only happens with home page (see by yourself www.abibliaeojornal.com.br). Other pages are ok. Could you help me on this?

Hi

There's conflict between Mootools and jquery javascript libraries.
Normally, when this 2 are loaded on same page, problems will happen.
From what i can see, this seams be coming from Lastest weets module javascript engine.
Try to disable this module or try install some no script conflict plugin (you can search on joomla extensions directory resources)... or you can try asking to their authors if it's possible to disable jquery support.

Cheers