var currentdate = 0;
var core = 0;

function initArray() {

this.length = initArray.arguments.length;
  for (var i = 0; i < this.length; i++) {
  this[i] = initArray.arguments[i];
  }
}

url = new initArray("canal18","muyputas","pervertidas","sexoyplacer","solosexogratis","solosexogratis");
image = new initArray("h_bot01.gif","muyputas_bot01.gif","pervertidas_bot01.gif","sexoyplacer_bot01.gif","solosexogratis_bot02.gif","solosexogratis_bot03.gif");

var currentdate = new Date();
var core = currentdate.getSeconds() % image.length;

var adurl = url[core];
var adbanner = image[core];

document.write('<a href=http://www.'+adurl+'.com target=_blank><img src=ad/'+adbanner+' border=0 align=absmiddle hspace=3></a>');