function banner() {} ; b = new banner() ; n = 0
b[n++]= "<img src='http://www.fishex.com/quality/banners/300x250-kc1.gif' border='0'>"
b[n++]= "<img src='http://www.fishex.com/quality/banners/coho-300x250.gif' border='0'>"
b[n++]= "<img src='http://www.fishex.com/quality/banners/kc-shipped.gif' border='0'>"
b[n++]= "<img src='http://www.fishex.com/quality/banners/salmon-300x250-ad2.gif' border='0'>"
b[n++]= "<img src='http://www.fishex.com/quality/banners/salmon-300x250-ad3.gif' border='0'>"
b[n++]= "<img src='http://www.fishex.com/quality/banners/300x250-salmon4.gif' border='0'>"
b[n++]= "<img src='http://www.fishex.com/quality/banners/300x250-merus1.gif' border='0'>"
i=Math.floor(Math.random() * n) ; 
document.write( b[i] )