// JavaScript Document
function mostrar(nu_div)
{
	switch(nu_div)
	{
		case '1': $('#ultimas').show(); $('#locais, #nacionais').hide(); break;
		case '2': $('#locais').show(); $('#ultimas, #nacionais').hide(); break;
		case '3': $('#nacionais').show(); $('#ultimas, #locais').hide(); break;
		//case '4': $('#nacionais').show(); $('#div_3, #div_1, #div_2').hide(); break;							
	}
}

function alteraTopo() {
    var paths = new Array();
    paths[0] = 'imgT/topoImg1.jpg'; /// <reference path="../imgT/topoImg.jpg" />
    paths[1] = 'imgT/topoImg3.jpg'; /// <reference path="../imgT/topoImg1.jpg" />
    paths[2] = 'imgT/topoImg2.jpg'; /// <reference path="../imgT/topoImg2.jpg" />   

    var index = Math.round(Math.random() * 2); //0 a 3

    document.getElementById('imgsTopo').style.backgroundImage = "url('" + paths[index] + "')";

}