var howMany = 0
  var quote = new Array(howMany+1)
  quote[0]="<a href=http://www.filmec.ru/dl/fclick.php?ext=http://www.mptri.ru/ target=_blank><img src=../../images/mptri.gif border=0 alt='Архив mp3'></a></a>"


function rndnumber(){
        var randscript = -1
        while (randscript < 0 || randscript > howMany || isNaN(randscript)){
                randscript = parseInt(Math.random()*(howMany+1))
        }
        return randscript
}
     quo = rndnumber()
     quox = quote[quo]
document.write(quox)