booksarr=new Array('0321122461','0240805593','0240515978','0125319428','0240805666','0071496432','0596008481','0890062757','0764541803','0240515609','1578202892','1578202086','047002268X','1928915590','0240809548','075066634X','0745324126','0672322498','0201703149','094118854X','0387236813','0240807545','0387208437','0596007337','1594200068','0465089844','0262582252','0060761555','0071424873','0240806301','0750678224','0240808312','159059651X','0471771953','0978921801','1591841380','0312430183','0876390440','0872887405','0240807626','0240806824','1575210061','0822333937','B0002UDQ8Q','0071406352','0201758482','0805044515','1578201160','0764536508','0240805801','0240805984','0787969788','0735614369','0764543601','0756609429','0471782785','0596009461','0071377441','0240808630','094118899X','0240807650','0240804201','0340857323','0782141986','1586831860','1852332832','0073135801','0471485608','0240809475','0470131136','0596100310','0470037881','0321429176','0764541145','0977689557','0789735741','0825673186','0240807359','0240804198','1932907106','0596100337','0735620148','0321330188','0321199545','0321335422','1590591496','0470124172','0470049820','1888093072','1888093099','193281356X','0240805577','0978046064','1581154321','1423905512','1418860069','0967294010','0814788076','0735556652','');

if(booksarr.length > 6){
function getRndImg() {
  var rnd = Math.round(Math.random()*(booksarr.length-1));
  return booksarr[rnd]
}
function makeArray() {
  var list = "";
  var arr = new Array();
  cnt = 0;
  while (cnt!=nofRandom) {
    var img = getRndImg();
    if (list.indexOf(img)==-1) {
      arr[cnt++]=img
      list+=img;
    }
  }
  return arr;
}
nofRandom = 6;


arr = makeArray();
for (i=0;i<arr.length;i++)
    {document.write('<iframe src="http://rcm.amazon.com/e/cm?t=masternewmedi&o=1&p=8&l=as1&asins=' + arr[i]+ '&fc1=000000&IS2=1&lt1=_blank&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="width:120px;height:240px;" scrolling="no" marginwidth="0" marginheight="0" frameborder="0"></iframe><br><br>')}

}