var imagenumber = 8 ; //Anzahl der Grafiken
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;

anzeige = new Array

anzeige[1]  = 'berlin_bahn&mode=books'
anzeige[2]  = 'berlin_u-bahn&mode=books'
anzeige[3]  = 'berlin_s-bahn&mode=books'
anzeige[4]  = 'berlin_verkehr&mode=books'
anzeige[5]  = 'berlin_bahn&mode=dvd-de'
anzeige[6]  = 'berlin_u-bahn&mode=dvd-de'
anzeige[7]  = 'berlin_s-bahn&mode=dvd-de'
anzeige[8]  = 'berlin_verkehr&mode=dvd-de'

var einblendung = anzeige[rand1];

document.write('<iframe width="468" height="60" scrolling="no" frameborder=0 src="http://rcm-de.amazon.de/e/cm?t=200019&l=st1&search=');
document.write(einblendung);
document.write('&p=13&o=3&f=ifr&lt1=_blank"><table border="0" cellpadding="0" cellspacing="0" width="468" height="60"><tr><td><MAP NAME="boxmap13"><AREA SHAPE="RECT" COORDS="95, 46, 160, 59" HREF="http://rcm-de.amazon.de/e/cm/privacy-policy.html?o=3" target=_blank  alt="Information"><AREA COORDS="0,0,10000,10000" HREF="http://www.amazon.de/exec/obidos/redirect/028-6491180-8646160?path=tg/browse/-/301128&tag=200019&creative=@CCMID@&camp=@CAMPID@&link_code=@LINKCODE@" target=_blank ></MAP><img src="http://images-eu.amazon.com/images/G/03/associates/recommends/468x60.gif" width=468 height=60 usemap="#boxmap13" border="0" access=regular></td></tr></table></iframe>');