var photos=new Array()

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

photos[0]='<img src="images/port_home_Image1.gif">'

photos[1]='<img src="images/port_home_Image2.gif">'

photos[2]='<img src="images/port_home_Image3.gif">'

photos[3]='<img src="images/port_home_Image4.gif">'

photos[4]='<img src="images/port_home_Image5.gif">'

var whichphoto=Math.floor(Math.random()*(photos.length))
document.write(photos[whichphoto])