var quotes=new Array()

//change the quotes if desired. Add/ delete additional quotes as desired.

quotes[0]='<script src="js/janela1.js"></script>'

quotes[1]='<script src="js/janela3.js"></script>'

quotes[2]='<script src="js/janela1.js"></script>'

quotes[3]='<script src="js/janela3.js"></script>'

var whichquote=Math.floor(Math.random()*(quotes.length))
document.write(quotes[whichquote])