var contents=new Array()
contents[0]='<IMG SRC="bamboo.jpg" WIDTH="320"  HEIGHT="240" BORDER="0" ALT="Bamboo Entertainment">'
contents[1]='<IMG SRC="bamboo_1.jpg" WIDTH="320"  HEIGHT="240" BORDER="0" ALT="Bamboo Entertainment">'

var the_one
var z=0
the_one=Math.floor(Math.random()*contents.length);
document.write(contents[the_one]);