var total_ads = 3;

var rand_int = Math.random();
var ad = Math.round((total_ads - 1) * rand_int) + 1;
var type = "";

if (ad==1) {
  target_url="http://eldoradoinsurance.com/";
  alt="El Dorado Insurance Agency";
  banner_url="images/banners/ed2_150x150.gif";
  width = 150;
  height = 150;
  type = "Support Our Sponsors!";
  }
if (ad==2) {
  target_url="mailto:carlos@thehispaniclawfirm.com";
  alt="Carlos Peniche, Attorney";
  banner_url="images/banners/peniche1_150x150.gif";
  width = 150;
  height = 150;
  type = "Support Our Sponsors!";
  }
if (ad==3) {
  target_url="http://www.worthcasualty.com/";
  alt="Worth Casualty Company";
  banner_url="images/banners/worth1_150x150.gif";
  width = 150;
  height = 150;
  type = "Support Our Sponsors!";
  }

document.write('<a href=\"' + target_url + '\" target=\"_self\">');
document.write('<img src=\"' + banner_url + '\" width=');
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0></a>');
document.write('<br>' + type);