function CheckArray(rgUsedAds, intRand, numads)
{
  
  var blnFound = "False";
  for (i=0;i<numads;i++)
  {
    if (rgUsedAds[i] == intRand)
    {
      blnFound = "True";
    }
  }
  return blnFound;
}

function openWindow_181(adid)
{
  winURL = "/shared-content/topads/showad.php?adid=" + adid;
  winName = "win" + adid;
  newwindow = window.open(winURL,winName,'width=400,height=450,location=no,toolbar=0,menubar=no,scrollbars=0,resizable=yes');
} 

function GenerateRandom(maxnum)
{
  var randnum = Math.round(maxnum * Math.random());
  return randnum
}


var blnInArray;
var numads = 5;
var intRand;
var i;
var rgUsed=new Array();
var rgAds=new Array();
rgAds[0] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587993&typeid=3" target = "_blank">KOONS OF WESTMINSTER</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[1] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587972&typeid=3" target = "_blank">UNITED USED CARS</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[2] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587974&typeid=3" target = "_blank">LEN STOLER CHEVY OLDS CAD</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[3] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587971&typeid=3" target = "_blank">LEN STOLER CHEVY OLDS CAD</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[4] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587968&typeid=3" target = "_blank">WHEELER AUTOMOTIVE GROUP INC</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[5] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587969&typeid=3" target = "_blank">BOHN PONTIAC</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[6] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587970&typeid=3" target = "_blank">CROUSE FORD SALES</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[7] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587967&typeid=3" target = "_blank">JEFF BARNES CHEV OLDS</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[8] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587965&typeid=3" target = "_blank">ADSTRATEGIES INC</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[9] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587966&typeid=3" target = "_blank">WANTZ CHEV INC</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';
rgAds[10] = '<center><a class = "topads_heading" href = "/shared-content/topads/showad.php?adid=587973&typeid=3" target = "_blank">STAMBAUGH CHEVROLET GEO</a><br> <br><span class = "topads_company"></span><hr class = "topads-rule">';

i=0;
while (i < numads)
{
  
  intRand = GenerateRandom(rgAds.length - 1);
  blnInArray = CheckArray(rgUsed, intRand, i);
  if (blnInArray == "False")
  {
    rgUsed[i] = intRand;
    i++;
  }
}
for (i=0;i<numads;i++)
{
  var adNum = rgUsed[i];
  document.write('' + rgAds[adNum] + '');
}