function change()
{
number = Math.floor(Math.random()*8)
if (number==0)
document.write('<img src="p1.jpg">')
if (number==1)
document.write('<img src="p2.jpg">')
if (number==2)
document.write('<img src="p3.jpg">')
if (number==3)
document.write('<img src="p4.jpg">')
if (number==4)
document.write('<img src="p5.jpg">')
if (number==5)
document.write('<img src="p6.jpg">')
if (number==6)
document.write('<img src="p7.jpg">')
if (number==7)
document.write('<img src="p8.jpg">')
}