var max = 10;
var nrImages = 5;

function makeImages() {
    this[0] = "../imagens/banner/camara.gif";
    this[1] = "../imagens/banner/cosmelind_b.jpg";
	this[2] = "../imagens/banner/abuiar.jpg";
	this[3] = "../imagens/banner/francinyFull.jpg";
	this[4] = "../imagens/banner/vote_cataratas.jpg";
	
	this.length = nrImages;
}
function makeLinks() {
    this[0] = "http://www.cmc.pr.gov.br";
    this[1] = "http://www.cosmelmoveis.com.br";
	this[2] = "http://antoniobuiar.com";
	this[3] = "http://autoescolafranciny.blogspot.com";
	this[4] = "http://www.new7wonders.com/votar?lang=pt-pt";
    

	this.length = nrImages;

}
function makeAlt() {
    this[0] = "Câmara";
    this[1] = "Marcenaria";
	this[2] = "Marcas e Patentes";
	this[3] = "Franciny";
	this[4] = "Cataratas";

}

var vetImages = new makeImages();
var vetLinks = new makeLinks();
var vetAlt = new makeAlt();
var x = Math.round(Math.random()*max);
var y = max / nrImages;
for(var cont = 1;cont*y<= max;cont++) {
if (x <= (cont*y)) {
document.write("<a href="+vetLinks[cont-1]+" rel='nofollow' target='_blank'><img alt="+vetAlt[cont-1]+"  src="+vetImages[cont-1]+" border=0 ;></a>");
break;
}
}