function ropic() {
number = Math.floor(Math.random()*5)
if (number==0)
document.write('<a href="#"><img src="images/mainphoto.jpg" width="591" height="249" border="0" alt="Alt description"></a>')
if (number==1)
document.write('<a href="#"><img src="images/mainphoto.jpg" width="591" height="249" border="0" alt="Alt description"></a>')
if (number==2)
document.write('<a href="#"><img src="images/mainphoto.jpg" width="591" height="249" border="0" alt="Alt description"></a>')
if (number==3)
document.write('<a href="#"><img src="images/mainphoto.jpg" width="591" height="249" border="0" alt="Alt description"></a>')
if (number==4)
document.write('<a href="#"><img src="images/mainphoto.jpg" width="591" height="249" border="0" alt="Alt description"></a>')
}