Why JQuery do not work?

I write a jquery script in a article using module that allow insert script inside... but all jquery command do not work (functions do not exists), but javacript alone works very well.

So why jquery do not work whith this template?

This template (an all the others) uses jQuery NoConflict mode. Make sure you are not using $ shortcut for jQuery.

Don't use this, in example $(this)
Use this, in example jQuery(this)