var howMany = 2
var quote = new Array(howMany+1)
quote[0]='<img src="../images/header1.jpg" alt="" />'
quote[1]='<img src="../images/header2.jpg" alt="" />'
quote[2]='<img src="../images/header3.jpg" alt="" />'
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)