var howMany = 4 // number of quotes (end number)
var quote = new Array(howMany+1)
quote[0]='<img src="images/indexPage1.jpg" alt="Train Through Building" />'
quote[1]='<img src="images/indexPage2.jpg" alt="Boston Skyline" />'
quote[2]='<img src="images/indexPage3.jpg" alt="Lighthouse" />'
quote[3]='<img src="images/indexPage4.jpg" alt="Construction Worker" />'
quote[4]='<img src="images/indexPage5.jpg" alt="Wedding Photo" />'



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)