2 100% columms + sticky footer

[elrosi]

So im doing an website, here it is:http://www.testeeee.cixx6.com/And i cant put the site_contente, and the content and sidebar (this 2 are inside site_contente) 100% height.Basically i want the content and the sidebar to be 100% no matter what. And when the content on content div is more than 100%, i want it to scroll, i mean, only scroll on content scroll.Example of what i want:http://i.stack.imgur.com/i2rid.jpg