// JavaScript Document
var max = 10;
var nrImages = 2;
function makeImages() {
this[0] = "anuncios/topdvd450X100.gif";
this[1] = "anuncios/crodontologia.jpg";

this.length = nrImages;


}
function makeLinks() {
this[0] = "#";
this[1] = "http://www.crodontologia.com.br";

}



var vetImages = new makeImages();
var vetLinks = new makeLinks();
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]+" target=_parent><img src="+vetImages[cont-1]+" border=0></a>");
break;
}
}